Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The octopus does not have a blind spot.
273
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
A 42-foot sperm whale has about 7 tons of oil in it.
209
A giraffe's kick is so powerful that it can decapitate a lion.
216