A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
A group of pugs is called a grumble.
10
Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
11
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
The head of a jellyfish is called the "Bell."
6