A federal judge has given the U.S. Fish and Wildlife Service three more years to determine whether the common hippopotamus should be protected under the U.S. Endangered Species Act. Wild hippos ...

Why did they never farm the hippo? The elephant? Or the giant wildebeest? Perhaps most strangely of all, given the importance of the horse to European history, why did tropical Africans never ...

Wild hippos are declining in number and are considered vulnerable to international trade in hippo parts, including the sale of their teeth, skulls, ivory, skin and meat, wildlife conservation ...