Wildebeest, also known as gnu, are large muscular antelopes that weigh 120-300kg. They have a large head, a robust muzzle and impressive horns that grow upwards and curve inwards. Their short hair ...

A keystone in an arch's crown secures the other stones in place. Keystone species play the same role in many ecological communities by maintaining the structure and integrity of the community.

Discover why coral reefs are so important. There are two species of oxpecker: the red-billed oxpecker (Buphagus erythrorhynchus) and yellow-billed oxpecker (Buphagus africanus). Both regularly spend ...

As the wildebeest shrinks ... Africa had already lost one of its eleven vulture species—the cinereous vulture—and now seven others are listed as either critically endangered or endangered.

How do new species form? Like most areas of Evolutionary Biology, research related to the formation of new species - 'speciation ' - is rich in historical and current debate. Here, we review both ...

Wildebeest, zebras, elephants, giraffes, gazelles and many other species can be spotted here on any given day. The large amount of prey also draws the highest population of predators. The golden ...

The Earth is currently experiencing its sixth major extinction event. One million species globally are at risk of extinction in the next few decades, including 27 percent of the world’s mammals, 41 ...

And generally, the reintroduction of a keystone or apex species — including the wolverine — sends out ripples of positive change, often extremely quickly. For example, reintroduced wildebeest ...

Other species forming the basis of the case are Baudin’s cockatoo, the Australian grayling, Carnaby’s black cockatoo, red goshawk, forest red-tailed black cockatoo and the Tasmanian wedge ...