Cats and dogs can hear ultrasound.
350
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Lobsters have blue blood.
476
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212