Parrot parents "name" their children with a signature call.
112
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
A lion in the wild usually makes no more than twenty kills a year.
186
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
The seahorse is the only fish to have a neck.
12