These monkeys are not actually true baboons, as their nostrils are located further from the end of their muzzle, but they resemble baboons in appearance. The gelada baboon is the only species of grazing monkey. It is not closely related to other types of baboon.
Gemsbok are highland antelopes. They live in dry woodlands and more open grassland habitats. Many of the gemsbok's closest relatives are desert animals. High-altitude habitats are also often dry, and this species is also able to survive in areas.
This large, graceful-looking gazelle is remarkable chiefly for its long neck (gerenuk means giraffenecked in Somali) and for its long legs. It has a small, narrow head, large eyes and mobile lips, there are tuffs of hair on the knees, and the short.
The largest of the African pigs, the giant forest hog has a huge elongate head, a heavy body and rather long legs for its family. Its muzzle is broad, and there are glandular swellings in the skin under its eyes and across its cheeks.
The 9 species of gibbons are found in Southeast Asia, Sumatra, Java and Borneo. Like the apes, gibbons lack an external tail and have a protruding jaw. The gibbons are agile, slender primates weighing between 11 and 28 lb (5 and 13 kg).
The giraffe family is a specialized offshoot of the deer family. It probably originated in the Old World and is now reduced to only 2 species, both found in Africa. Both animals have unique, skin-covered, blunt horns, which are not shed.
One of the most colourful of all monkeys, the golden lion tamarin has suffered from the extensive deforestation of its forest habitat, and is now considered endangered. The wild golden lion tamarin population had fallen to about 100 by the early 1980s.
The largest of the world’s primates, it is thought that the gorilla lineage split from that of the chimpanzee and humans about seven million years ago. In spite of their fearsome appearance, gorillas are not aggressive by nature.
Gray whales undertake one of the longest migratory journeys of any creature on earth. Their size means that their only major predators are killer whales. In autumn they swim from Arctic waters down the western coast of North America.
Grevy's zebra has a long head, broad, rounded ears and a relatively short, strong neck. An erect mane runs from its crown down the back of its neck. Its body is white with black stripes, both narrower and more numerous than those of the common zebra.