They're rumoured to kill more humans than lions every year. But that didn't stop a brave zoo keeper at Qingdao Wildlife World in east China's Shandong province practising a bit of dental hygiene on ...

For the best experience, please enable JavaScript in your browser settings. Hippos need good dental hygiene too. [Photo: Getty] They're rumoured to kill more humans ...

Hippos' huge tusks and wide gape restrict grinding jaw movements, making their chewing inefficient, according to a new study. Hippos' huge tusks and wide gape restrict grinding jaw movements, making ...

Video by @zookeeperguyHippos have four canines one in each corner in the front of their mouth. But if you look along here, you can see that they’re not the same. The big lower canines, those is the ...

SEATTLE — Water Lily, Woodland Park Zoo's 45-year-old hippopotamus, underwent dental surgery on Wednesday, according to a blog post. The north Seattle zoo said Thursday Lily is "healing well" after ...

JOHANNESBURG (AP) — Authorities in Tanzania plan an auction of 3.5 tons of hippo teeth next week, drawing criticism from conservation groups who say the sale could encourage increased killing of the ...

A new aerial survey shows that the hippo population in Virunga National Park in the Democratic Republic of Congo will soon be extinct due to rampant poaching for hippo teeth and meat. Gland, ...

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 are ...

JOHANNESBURG (AP) — Authorities in Tanzania plan an auction of 3.5 tons of hippo teeth next week, drawing criticism from conservation groups who say the sale could encourage increased killing of the ...