Sheep, goats, octopuses, and toads have rectangular pupils.
7
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
A group of pugs is called a grumble.
10
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17