Sloths take two weeks to digest their food.
243
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
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