The cat brain weighs about 30g.
167
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
A 42-foot sperm whale has about 7 tons of oil in it.
209
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13