Lion

Lion



Physical Characteristics

The lion is a magnificent animal that appears as a symbol of power, courage and nobility on family crests, coats of arms and national flags in many civilizations. Lions at one time were found from Greece through the Middle East to northern India, but today only a very small population remains in India. In the past lions lived in most parts of Africa, but are now confined to the sub-Saharan region.

Mature male lions are unique among the cat species for the thick mane of brown or black hair encircling the head and neck. Both male and female lions roar, a sound which can be heard as far as 8 km away.

Habitat

Lions are found in savannas, grasslands, dense bush and woodlands.

Behavior

The lion is an exception to the usual solitary existence of most cat species. It has developed a social system based on teamwork, division of labor and an extended but closed family unit. The average pride consists of about 15 individuals: 5 to 10 females, their young, and 2 or 3 territorial males. These are usually brothers or pride mates who have formed a coalition to protect their females. Because a nursing lioness will come into heat a few weeks after the loss of cubs, males with newly won prides will often kill existing cubs, enabling them to sire their own. When resting, lions seem to enjoy good fellowship with lots of touching, head rubbing, licking and purring.

Litters consist of two or three cubs that weigh about 3 pounds each. Some mothers carefully nurture the young; others may neglect or abandon them, especially when food is scarce. Usually two or more females in a pride give birth about the same time, and the cubs are raised together. A lioness will permit cubs other than her own to suckle, sometimes enabling a neglected infant to survive. Capable hunters by 2 years of age, lions become fully grown between 5 and 6 years and normally live about 13 years.

Diet

Cooperative hunting enables lions to take prey as large as buffaloes, rhinos, hippos and giraffes. However, scavenged food provides more than 50% of their diets—lions will often take over kills made by other carnivores. Females do 85-90% of the hunting, usually by setting up an ambush into which they drive the prey. The kill is not shared equally within a pride, and at times of prey scarcity, high juvenile mortality rates occur, as hungry females may not even share with their offspring.

Predators and Threats

Lions have long been killed in rituals of bravery, as hunting trophies, and for their medicinal and magical powers. Habitat loss and conflicts with humans are the lions greatest threat. Currently, AWF funds research on lion behavior and human-lion conflicts in Tanzania, Kenya, and Botswana. Little is currently known about where lions go outside of national parks, what they do and what types of threats they face. With a growing human population surrounding parks, there are an increasing number of encounters with humans.

Did You Know?

* Most lions drink water daily if available, but can go four or five days without it. Lions in arid areas seem to obtain needed moisture from the stomach contents of their prey.
* When males take over a pride, they usually kill the cubs. The females come into estrus and the new males sire other cubs.

Rhinoceros

Rhinoceros


Physical Characteristics

The rhinoceros is a large, primitive-looking mammal that in fact dates from the Miocene era millions of years ago. In recent decades rhinos have been relentlessly hunted to the point of near extinction. Since 1970 the world rhino population has declined by 90 percent, with five species remaining in the world today, all of which are endangered.

The white or square-lipped rhino is one of two rhino species in Africa. It in turn occurs as two subspecies, the southern and the northern. The southern dwindled almost to extinction in the early 20th century, but was protected on farms and reserves, enabling it to increase enough to be reintroduced. The northern white rhino has recovered in Democratic Republic of Congo from about 15 in 1984 to about 30 in the late 1990s. This population, however, has recently been severely threatened by political conflict and instability.

The white rhino's name derives from the Dutch "weit," meaning wide, a reference to its wide, square muzzle adapted for grazing. The white rhino, which is actually gray, has a pronounced hump on the neck and a long face.

The black, or hooked-lipped, rhino, along with all other rhino species, is an odd-toed ungulate (three toes on each foot). It has a thick, hairless, gray hide. Both the black and white rhino have two horns, the longer of which sits at the front of the nose.

Habitat

Black rhinos have various habitats, but mainly areas with dense, woody vegetation. White rhinos live in savannas with water holes, mud wallows and shade trees.

Behavior

Rhinos live in home ranges that sometimes overlap with each other. Feeding grounds, water holes and wallows may be shared. The black rhino is usually solitary. The white rhino tends to be much more gregarious. Rhinos are also rather ill-tempered and have become more so in areas where they have been constantly disturbed. While their eyesight is poor, which is probably why they will sometimes charge without apparent reason, their sense of smell and hearing are very good. They have an extended "vocabulary" of growls, grunts, squeaks, snorts and bellows. When attacking, the rhino lowers its head, snorts, breaks into a gallop reaching speeds of 30 miles an hour, and gores or strikes powerful blows with its horns. Still, for all its bulk, the rhino is very agile and can quickly turn in a small space. The rhino has a symbiotic relationship with oxpeckers, also called tick birds. In Swahili the tick bird is named "askari wa kifaru," meaning "the rhino's guard." The bird eats ticks it finds on the rhino and noisily warns of danger. Although the birds also eat blood from sores on the rhino's skin and thus obstruct healing, they are still tolerated.

The closest rhino relationship is between a female and her calf, lasting from 2 to 4 years. As the older calves mature, they leave their mothers and may join other females and their young, where they are tolerated for some time before living completely on their own.


Diet

The black rhino is a browser, with a triangular-shaped upper lip ending in a mobile grasping point. It eats a large variety of vegetation, including leaves, buds and shoots of plants, bushes and trees. The white rhino, on the other hand, is a grazer feeding on grasses.

Predators and Threats

Man is the cause of the demise of the rhino. In the wild, the adult black or white rhino has no true natural predators and, despite its size and antagonistic reputation, it is extremely easy for man to kill. A creature of habitat that lives in a well-defined home range, it usually goes to water holes daily, where it is easily ambushed. The dramatic decline in rhino numbers is unfortunate in an era of increasing conservation and wildlife awareness, but efforts are underway to save the rhino from extinction.

Did You Know?

* The black rhino declined drastically in the 1970s and 1980s due to poaching. To prevent extinction, many rhinos were translocated to fenced sanctuaries in the early 1990s. This effort appears to be succeeding, as 1994 was the first time in 20 years that rhino numbers did not decline.
* The rhino is prized for its horn. Not a true horn, it is made of thickly matted hair that grows from the skull without skeletal support. The major demand for horn is in Asia, where it is used in traditional medicine and ornamental carvings.

Mountain Gorilla

Mountain Gorilla


Physical Characteristics

Few animals have sparked the imagination of man as much as the gorilla, the largest of the living primates. Most gorillas live in inaccessible regions in various dense forests in tropical Africa, and one subspecies, the mountain gorilla (Gorilla beringei beringei), was not even known to science until 1902.

The mountain gorilla has a robust build with long, muscular arms, a massive chest, and broad hands and feet. It is the hairiest race of gorillas; its long, thick black hair insulates it from the cold of living at high elevations.

Habitat

Mountain gorillas are confined to four national parks, separated into two forest blocks no more than 45 kilometers (28 miles) apart and comprising approximately 590 sq km (228 sq mi) of afromontane and medium altitude forest. One population of mountain gorillas inhabits the Bwindi Impenetrable National Park in Uganda. A census in 2002 recorded between 310-315 individuals here. The second population of mountain gorillas is found in the habitat shared by Mgahinga Gorilla National Park (Uganda), Volcano National Park (Rwanda) and Virunga National Park -Southern Sector (DRC). The Virunga population numbers at least 358 individuals and has grown by 11% in the past 12 years.

Behavior

Although strong and powerful, gorillas are generally gentle and shy. They live in groups of 2-40 individuals, averaging about 11. Groups are led by a dominant male, the silverback, named for the silvery gray hairs that grow when the male matures. The silverback serves as the chief leader and protector of the group, to whom all group members defer. He decides when and where to forage, rest and sleep, arbitrates disputes among his family members and protects them from rival silverbacks or human predators.

Mountain gorillas have a slow rate of reproduction. This slow reproduction makes this species even more threatened. In a 40-50 year lifetime, a female might have only 2-6 living offspring. Females give birth for the first time at about age 10 and will have offspring every four years or more. A male reaches sexual maturity between 10 and 12 years. Able to conceive for only about three days each month, the female produces a single young and in rare cases twins.

Newborn gorillas are weak and tiny, weighing about 4 pounds. Their movements are as awkward as those of human infants, but their development is roughly twice as fast. At 3 or 4 months, the gorilla infant can sit upright and can stand with support soon after. It suckles regularly for about a year and is gradually weaned at about 3.5 years, when it becomes more independent.

Diet

It is perhaps surprising that an animal as large and strong as the mountain gorilla is primarily an herbivore. Mountain gorillas eat over 100 different species of plants. They rarely need to drink since their diet is so rich in succulent herbs, from which they get their water.

Predators and Threats

The primary threat to mountain gorillas comes from forest clearance and degradation, as the region's growing human population struggles to eke out a living. AWF, in collaboration with FFI and WWF, established the International Gorilla Conservation Program (IGCP) to safeguard the last remaining mountain gorillas. IGCP works on three levels: Strengthening gorilla habitat protection through regional collaboration, researching the dynamic between the human population and the natural habitat/wildlife, and working with local communities to develop livelihood strategies that are complementary to conservation objectives. This coalition has been a tremendous success, but support is still greatly needed. The most endangered of the gorilla subspecies, only about 700 mountain gorillas remain in the wild. The Virunga Mountains and nearby Bwindi Impenetrable National Park in Uganda are the last refuges of this great ape.

Did You Know?

* Humans and gorillas are 98% genetically identical.
* Male silverback gorillas can weigh 50-100 pounds more - and are about 10 times stronger - than the biggest American football players.
* When the group is attacked by humans, leopards, or other gorillas, the silverback will protect them even at the cost of his own life.

Leopard

Leopard


Physical Characteristics

The most secretive and elusive of the large carnivores, the leopard is also the shrewdest. Pound for pound, it is the strongest climber of the large cats and capable of killing prey larger than itself.

Leopards come in a wide variety of coat colors, from a light buff or tawny in warmer, dryer areas to a dark shade in deep forests. The spots, or rosettes, are circular in East African leopards but square in southern African leopards.

Habitat

Dense bush in rocky surroundings and riverine forest are their favorite habitats, but leopards adapt to many places in both warm and cold climates. Their adaptability, in fact, has helped them survive the loss of habitat to increasing human settlement. Leopards are primarily nocturnal, usually resting during the daytime in trees or thick bush. The spotted coat provides almost perfect camouflage.


Behavior

Leopards are solitary creatures and predominately nocturnal. Each individual has a home range that overlaps with its neighbors; the male's range is much larger and generally overlaps with those of several females. Leopards continually move about their territory, seldom staying in an area for more than two or three days at a time. Ranges are marked with urine and claw marks and leopards announce their presence to other leopards with a rasping cough. Leopards also growl, roar and purr.

A litter includes two or three cubs, whose coats appear to be smoky gray as the rosettes are not yet clearly delineated. The female abandons her nomadic wandering until the cubs are large enough to accompany her. She keeps them hidden for about the first 8 weeks, giving them meat when they are 6 or 7 weeks old and suckling them for 3 months or longer.

Diet

The most elusive of the large carnivores, the leopard is a cunning, stealthy hunter, its prey ranges from strong-scented carrion, fish, reptiles and birds to mammals such as rodents, hares, hyraxes, warthogs, antelopes, monkeys and baboons. Both lions and hyenas have been known to take away a leopard's kill. To prevent this, leopards store their larger kills in trees where they can feed on them in relative safety.

Predators and Threats

The most widespread of the felines, leopards occur in regions across both Africa and Asia. Indeed, their adaptability to both warm and cold climates has helped them survive the loss of habitat caused by increasing human settlement. However, leopards have long been preyed upon by man. Their soft, beautiful fur has been used for clothing. The tail, claws and whiskers of the leopard are popular as fetishes. In some areas farmers try to exterminate them, while in others leopards are considered symbols of wisdom.

Did You Know?

* The elegant, powerfully built leopard has a long body, relatively short legs and a broad head. Its tawny coat is covered with dark, irregular circles called "rosettes."
* Both lions and hyenas will take away a leopard's kill if they can. To prevent this leopards store their larger kills in trees where they can feed on them in relative safety.

Jackal

Jackal

Physical Characteristics

The three jackal species found in East Africa differ mainly in color and choice of habitat. The sandy-colored golden jackal prefers open, grassy plains, while the side-striped jackal lives along waterways with dense undergrowth. This jackal is drabber in color, has a white tip on the tail and indistinct stripes along the sides of the body. The black-backed jackal is recognized by the mantle of black hair on the back that contrasts with the rust-colored body. The tail is black-tipped, as is that of the golden jackal. The black-blacked jackal is usually the most frequently seen as it is more diurnal than the other two species.

Habitat

The common jackal lives in open savannas, deserts and arid grasslands. Side-striped jackals are found in moist savannas, marshes, bushlands and mountains. The sliver-backed jackal lives primarily in savannas and woodlands.

Behavior

Jackals live singly or in pairs, but are sometimes found in loose packs of related individuals. They are among the few mammalian species in which the male and female mate for life. Mated pairs are territorial, and both the female and male mark and defend the boundaries of their territory. Sometimes pups will stay with their parents and help raise their younger siblings. Most pup deaths occur during the first 14 weeks of life, so the presence of helpers increases the survival rate. Family or pack members communicate with each other by a screaming yell and yapping, or a siren-like howl when a kill is located.


Litters number up to six but usually average two to four. It takes about 10 days for the infants' eyes to open, and for the first few weeks of life they remain in the thickets or holes where they were born. At about 3 weeks they begin to spend time outside playing with their litter-mates. At first the games are clumsy attempts at wrestling, pawing and biting. As they become more coordinated, they ambush and pounce, play tug of war and chase each other. The mother changes den sites about every two weeks, so the young are less likely to be found by predators.

The pups are suckled and fed regurgitated food until they are about 2 months. By 3 months they no longer use the den, but start to follow their parents, slowly learning the territory and observing hunting behavior. By 6 months, they are hunting on their own. Their parents, however, continue to feed, groom and play with them.

Sometimes pups stay with their parents and help raise their younger brothers and sisters. At times they bring back food to their younger siblings or babysit them while the parents hunt for food. Most pup deaths occur during the first 14 weeks of life, so the presence of helpers increases the survival rate.

Diet

Jackals can best be described as opportunistic omnivores. They cooperatively hunt small or young antelopes and also eat reptiles, insects, ground-dwelling birds, fruits, berries and grass. They will pick over kills made by large carnivores and even frequent rubbish dumps in pursuit of food.

Predators and Threats

Being highly adaptable and resourceful, jackals have not displayed large population depletions like many other African carnivores. However, increased habitat loss causes them to infringe more and more on human settlements, where they may be viewed as a danger to livestock and poultry.

Did You Know?

* Jackals are noisy. Family or pack members communicate with each other by a screaming yell and yapping, or a sirenlike howl when a kill is located.
* Jackals are very cunning and resourceful. Although usually considered scavengers-they do pick over kills made by large carnivores and frequent rubbish dumps-they also hunt and kill a variety of prey.

Hyena

Hyena



Physical Characteristics

The hyena (spelled "hyeana" in some parts of the world) is Africa's most common large carnivore. Over the years hyenas and humans have come into close contact in Africa and, in earlier times, in Asia and in Europe, often leading to mutual predation. In ancient Egypt hyenas were domesticated, fattened and eaten, and in turn humans have on occasion become food for hyenas. Reputed to be cowardly and timid, the hyena can be bold and dangerous, attacking animals and humans.

Female spotted hyenas are dominant over the males and outweigh them by about 3 pounds. It is difficult to distinguish between the sexes in the field because external female genitalia have a superficial similarity to those of the male. Why the female hyena developed in this manner is unknown, but it may have been necessary for them to appear large and strong to protect their young from males, as hyenas have cannibalistic tendencies.

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Habitat

Spotted hyenas are found in grasslands, woodlands, savannas, subdeserts, forest edges and mountains.
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Behavior

Spotted hyenas are organized into territorial clans of related individuals. The center of clan activity is the den, where the cubs are raised and individuals meet. Hyenas mark and patrol their territories by depositing a strong-smelling substance produced by the anal glands on stalks of grass along the boundaries. "Latrines," places where members of a clan deposit their droppings, also mark territories. Hyenas are social animals that communicate with one another through specific calls, postures and signals.

Hyenas usually bear litters of two to four cubs, which, unlike the other two species, are born with their eyes open. Cubs begin to eat meat from kills near the den at about 5 months, but they are suckled for as long as 12 to 18 months, an unusually long time for carnivores. This is probably a necessity, as most kills are made far from the den, and hyenas, unlike jackals and hunting dogs, do not bring back food and regurgitate it for their young. At about 1 year, cubs begin to follow their mothers on their hunting and scavenging forays. Until then, they are left behind at the den with a babysitting adult.

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Diet

The spotted hyena is a skillful hunter but also an opportunistic scavenger. It consumes animals of various types and sizes, carrion, bones, vegetable matter and other animals' droppings. The powerful jaws and digestive tract of the hyena allow it to process and obtain nutrients from skin and bones. The only parts of prey not fully digested are hair, horns and hooves; these are regurgitated in the form of pellets. The high mineral content of the bones hyenas consume make their droppings a highly visible, chalky white.

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Predators and Threats

Hyenas have long conflicted with human populations. African legends and folklore associate the hyena with witchcraft and the supernatural. Like many predators, hyenas become targeted when they take livestock for prey.

Did You Know?

* Hyenas make a variety of vocalizations, including wailing calls, howling screams and the well-known "laughter" used to alert other clan members up to three miles away of a food source.
* Hyenas eat a great variety of animal products, vegetation and, according to campers, even aluminum pots and pans.

Hippopotamus

Hippopotamus


Physical Characteristics

The hippopotamus, whose hide alone can weigh half a ton, is the third-largest living land mammal, after elephants and white rhinos. It was considered a female deity of pregnancy in ancient Egypt, but in modern times has been wiped out of that country because of the damage it inflicts on crops. The hippo continues to thrive in other parts of Africa.

Hippos are the third-largest living land mammal, after elephants and white rhinos. A hippo’s foot has four webbed toes which splay out to distribute weight evenly and therefore adequately support it on land. The grayish body has very thick skin which is virtually hairless. The hippo has neither sweat nor sebaceous glands, relying on water or mud to keep cool. It does, however, secrete a viscous red fluid which protects the animal’s skin against the sun and is possibly a healing agent. The hippo’s flat, paddle-like tail is used to spread excrement, which marks territory borders and indicates status of an individual.

Habitat

Two hippo species are found in Africa. The large hippo, found in East Africa, occurs south of the Sahara. This social, group-living mammal is so numerous in some areas that "cropping" schemes are used to control populations that have become larger than the habitat can sustain. The other, much smaller (440 to 605 pounds) species of hippo is the pygmy hippopotamus (Choeropsis liberiensis). Limited to very restricted ranges in West Africa, it is a shy, solitary forest dweller, and now rare.


Behavior

Hippos have a flexible social system defined by hierarchy and by food and water conditions. Usually they are found in mixed groups of about 15 individuals held by a territorial bull, but in periods of drought large numbers are forced to congregate near limited pools of water. This overcrowding disrupts the hierarchical system, resulting in even higher levels of aggression, with the oldest and strongest males most dominant. Old scars and fresh, deep wounds are signs of daily fights that are accompanied by many vocalizations.

A single young is born either on land or in shallow water. In water, the mother helps the newborn to the surface, later teaching it to swim. Newly born hippos are relatively small, weighing from 55 to 120 pounds, and are protected by their mothers, not only from crocodiles and lions but from male hippos that, oddly enough, do not bother them on land but attack them in water.

Young hippos can only stay under water for about half a minute, but adults can stay submerged up to six minutes. Young hippos can suckle under water by taking a deep breath, closing their nostrils and ears and wrapping their tongue tightly around the teat to suck. This procedure must be instinctive, because newborns suckle the same way on land. A young hippo begins to eat grass at 3 weeks, but its mother continues to suckle it for about a year. Newborns often climb on their mothers' backs to rest.


Diet

Hippos are surprisingly agile and often traverse steep banks each night to graze on grass. They exit and enter the water at the same spots and graze for four to five hours, covering one or two miles, with extended forays of up to five miles. Their modest appetites are due to their sedentary life, which does not require high outputs of energy.

Predators and Threats

The hippo once ranged from the Nile delta to the Cape. Now it is mostly confined to protected areas. Hundreds of hippos are shot each year in “controlled management” schemes, despite the fact that hippos are easily deterred by ditches or low fences. It is more likely that the popularity of hippo meat is the reason for this strategy. The fat and ivory tusks of the hippo, as well as the land on which it grazes, are also of value to humans.

Did You Know?

* The name hippopotamus comes from the Greek "hippos," meaning horse, these animals were once called "river horses." But the hippo is more closely related to the pig than the horse.
* Hippos spend most of their day in water close to shore lying on their bellies. In areas undisturbed by people, hippos lie on the shore in the morning sun.