Hippos may look lazy in the water, but their poop creates one of the deadliest natural threats in their environment. By releasing massive amounts of waste into rivers, they deplete oxygen levels and ...

Jan. 18 (UPI) --Zoos in New York and Texas are offering the love-struck and the lovelorn the opportunity to buy some unusual Valentine's Day gifts: naming rights for cockroaches. The Bronx Zoo said ...

This video investigates why hippo waste poses an unusually deadly threat to river ecosystems. Scientists reveal how the sheer volume of their droppings quickly strips oxygen from the water. Footage ...