1. A 300 kg Octopus can easily squeeze through a hole of diameter 8cm.
2. About 10 male honey bees mate with the Queen bee and die one after another due to exploded testicles.
3. Our heart beats with such pressure that blood can be squirted about 36 feet.
4. Male Giraffe head-butts female in the bladder until it urinates. Then it tastes the urine to see whether it is ovulating to see if they can mate.
Footnotes