A 42-foot sperm whale has about 7 tons of oil in it.
209
The cat brain weighs about 30g.
167
The largest earthworm on record was found in South Africa and measured 22 feet.
151
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Cows can sleep standing up, but they can only dream lying down.
745
The colossal squid has the largest eyes in the world.
4
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9