It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
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
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11