Rattlesnake mating sessions have been known to last more than 22 hours.
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It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
Cats and dogs can hear ultrasound.
350
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9