Wednesday, 15 August 1984
15-8-1984 AMBOSELI, KENYA - SOUTHERN LION (FEMALE) (Panthera leo ssp. melanochaita)
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The fur of Southern lions varies in color from light buff to dark brown. They have rounded ears and a black tail tuft. Mane color varies from sandy, tawny, isabelline, and light reddish yellow to dark brown and black. Mane length varies from short to extending to knee joints and under the belly. Lions without a mane were observed in the Tsavo area. Mane development is related to age: older males have more extensive manes than younger ones; manes continue to grow up to the age of four to five years, long after lions become reproductively mature. Males living in the Kenyan highlands develop heavier manes than lions in the more humid and warmer lowlands of eastern and northern Kenya. White lions have occasionally been encountered in and around South Africa's Kruger National Park and the adjacent Timbavati Private Game Reserve. Their whitish fur is a rare morph caused by a double recessive allele. It has normal pigmentation in the eyes and skin. They were removed from the wild in the 1970s, thus decreasing the white lion gene pool.
Tuesday, 14 August 1984
15-8-1984 MASAI MARA, KENYA - AFRICAN LIONS (Panthera leo)
The lion (Panthera leo) is a large cat of the genus Panthera, native to Africa and India. It has a muscular, broad-chested body; a short, rounded head; round ears; and a dark, hairy tuft at the tip of its tail. It is sexually dimorphic; adult male lions are larger than females and have a prominent mane. It is a social species, forming groups called prides. A lion's pride consists of a few adult males, related females, and cubs. Groups of female lions usually hunt together, preying mostly on medium-sized and large ungulates. The lion is an apex and keystone predator.
The lion inhabits grasslands, savannahs, and shrublands. It is usually more diurnal than other wild cats, but when persecuted, it adapts to being active at night and at twilight. During the Neolithic period, the lion ranged throughout Africa and Eurasia, from Southeast Europe to India, but it has been reduced to fragmented populations in sub-Saharan Africa and one population in western India. It has been listed as Vulnerable on the IUCN Red List since 1996 because populations in African countries have declined by about 43% since the early 1990s. Lion populations are untenable outside designated protected areas. Although the cause of the decline is not fully understood, habitat loss and conflicts with humans are the greatest causes for concern.
Friday, 10 August 1984
10-8-1984 SERENGETTI, KENYA - RUPPELL'S STARLING (Lamprotornis purpuroptera)
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Rüppell's starling (Lamprotornis purpuroptera), also known as Rueppell's glossy-starling or Rueppell's long-tailed starling, is a species of starling in the family Sturnidae. It is found in Burundi, the Democratic Republic of the Congo, Eritrea, Ethiopia, Kenya, Rwanda, Somalia, South Sudan, Sudan, Chad, Tanzania, and Uganda.
1984 MASAI MARA, KENYA - AFRICAN BUFFALO (Syncerus caffer)
The African buffalo (Syncerus caffer) is a large sub-Saharan African bovine. There are five subspecies that are recognized as being valid. Syncerus caffer caffer, the Cape buffalo, is the nominotypical subspecies, and the largest one, found in Southern and East Africa. S. c. nanus (the forest buffalo) is the smallest subspecies, common in forest areas of Central and West Africa, while S. c. brachyceros is in West Africa and S. c. aequinoctialis is in the savannas of East Africa. The adult African buffalo's horns are its characteristic feature: they have fused bases, forming a continuous bone shield across the top of the head referred to as a "boss". It is widely regarded as one of the most dangerous animals on the African continent, and according to some estimates it gores, tramples, and kills over 200 people every year.
1984 MARA RIVER, KENYA - EAST AFRICAN HIPPOPOTAMUS (Hippopotamus amphibius ssp. kiboko)
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Hippos are recognizable for their barrel-shaped torsos, wide-opening mouths with large canine tusks, nearly hairless bodies, pillar-like legs, and large size. The eyes, ears, and nostrils of hippos are placed high on the roof of their skulls. This allows these organs to remain above the surface while the rest of the body is submerged. The hippo's jaw is powered by huge masseter and digastric muscles which give them large, droopy cheeks. The jaw hinge allows the animal to open its mouth at almost 180°. The canines and incisors are used mainly for combat instead of feeding. Hippos rely on their flattened, horny lips to grasp and pull grasses which are then ground by the molars. Hippo skin is 6 cm (2 in) thick across much of its body with little hair. The animal is mostly purplish-grey or blue-black, but brownish-pink on the underside and around the eyes and ears. Their skin secretes a natural, red-colored sunscreen substance that is sometimes referred to as "blood sweat" but is neither blood nor sweat. This secretion is initially colorless and turns red-orange within minutes, eventually becoming brown. This natural sunscreen cannot prevent the animal's skin from cracking if it stays out of water too long.
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The original range of this species used to cover sub-Saharan Africa. The small current range of Common Hippos includes East African countries such as Tanzania, Zambia, and Mozambique. As semiaquatic creatures, they prefer living in shallow water bodies such as lakes, rivers, or swamps. Hippos mostly live in freshwater habitats; however, populations in West Africa mostly inhabit estuarine waters and may even be found out at sea.
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Common hippos are highly social, nocturnal, and sedentary animals. They usually form groups of 20-100 individuals that are led by females, who occupy the core areas of their resting pools. Males of the group are responsible for protecting females and the young. Hence, they remain on the outer banks of these resting pools. The daytime hours are typically spent resting. At dusk, the animals come out of their shelters to forage. Common hippos are normally non-territorial, except when in the water. Males of this species can occasionally be observed fighting for access to females or space in the resting pool. Males and females of a group don't tend to socialize with each other and generally remain separated. Females and their offspring gather in smaller sub-groups and occasionally practice communal care, helping rear each other's claves. Communication between community members occurs through a wide range of vocalizations.
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Their most common vocalization is the "wheeze honk", which can travel over long distances in the air. The animals can recognize the calls of other individuals. When threatened or alarmed, they produce exhalations, and fighting bulls will bellow loudly. Hippos produce clicks underwater which may have echolocative properties. They have the unique ability to hold their heads partially above the water and send out a cry that travels through both water and air; individuals respond both above and below water. Despite being semiaquatic and having webbed feet, an adult hippo is not a particularly good swimmer, nor can it float. It rarely enters deep water; when does, the animal moves by bouncing off the bottom. An adult hippo surfaces every 4-6 minutes, while the young need to breathe every 2-3 minutes.
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Common hippos exhibit a polygynous mating system, where one male mate with a group of females. These mammals don't have a specific breeding season, although they generally mate from February to August. Females of this species give birth underwater. They produce offspring from October to April, which coincides with the rainy season. A single baby is born after 240 days of gestation. Mothers and their young live in close bonds with each other. They display affection through activities such as cleaning and cuddling. Complete weaning occurs at about 1.5 years old, although the baby often continues living with its mother until 7-8 years of age, when totally independent. The age of reproductive maturity is 7-9 years old for males and 8-10 years old for females.
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