While the common hippo is not in danger of extinction, the species is threatened by loss of habitat as a result of human encroachment and the continued expansion of the Sahara Desert. Hippos graze on land; they do not eat while in the water and arenât known to graze on aquatic plants. They prefer short, creeping grass and small green shoots and reeds.
8)Grey wolves live an average of 8-10 years, but sometime longer in the wild. Red wolves are usually under 10 years in the wild. 9) Wolves, like all dogs, are coursers and can maintain a speed for a period of time to chase prey (vs. cats which are stalkers and display fast speeds for short distances). Grey wolves can run up to about 50km/h (30mph). 10) The distance they travel depends again on prey availability, but can travel 15-50km a day (10-30miles).
Living and hunting in packs, wolves are wild dogs that come from the same group as the dingo and coyote. They can reach speeds of 65 km/h (40 mph) when chasing prey and include a number of species such as the gray wolf (also known as the grey wolf or timber wolf), red wolf, arctic wolf, mexican wolf and white wolf. It is part of a group of animals called the wild dogs which also includes the dingo and the coyote. 2  Most wolves weigh about 40 kilograms but the heaviest wolf ever recorded weighed over 80 kilograms! 3  Adult wolves have large feet.