Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Squirrels forget where they hide about half of their nuts.
698
The octopus does not have a blind spot.
273
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
A 42-foot sperm whale has about 7 tons of oil in it.
209
