The seahorse is the only fish to have a neck.
12
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
The oldest recorded elephant lived for 82 years.
213
The elephant brain weighs about 6,000g.
274
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
A giraffe's kick is so powerful that it can decapitate a lion.
216
A scorpion can hold its breath for up to 6 days.
19