Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
The Basenji dog is the only dog that is not able to bark.
4
A domestic cat can sprint at about 31 miles per hour.
274
Cows can sleep standing up, but they can only dream lying down.
745
The station master and operating officer at the Kishi Station, Japan, is a cat!
18
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23