Have you ever seen a hippo get its teeth brushed? This video from CGTN Español shows how a zookeeper cleans the teeth of a very cooperative hippo. The friendly hippo keeps its massive mouth open for ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Hippo underwater, hippopotamus in water through glass© Lena Ivanova/Shutterstock.com The post Inside the World of the Hippopotamus ...

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 ...

Is anything cuter than a baby hippo? Fans of Thailand’s Khoa Kheow Open Zoo don’t think so. The zoo recently held a four-day festival dedicated to their most famous resident: a pygmy hippo named Moo ...