The sloth bears at the National Zoo in Washington, D.C., have to brush their teeth just like the zoo’s human visitors. In addition to that awesome visual, there are also other benefits to the ...

Rico, who is 25 years old, had a three-hour operation at Chester Zoo's animal care centre, with the infected tissue surrounding two of the sloth's teeth removed. Unlike a typical root canal ...

It was a European zoologist, George Shaw, who named the sloth bear for its long, thick claws and unusual teeth. He thought that the bear was related to the tree sloth due to these features," the ...