Rattlesnake mating sessions have been known to last more than 22 hours.
232
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
An average cat has 1-8 kittens per litter and can have 2-3 litters per year. During her productive life, one female cat could have more than 100 kittens. A single pair of cats and their kittens can produce as many as 420,000 kittens in just 7 years.
10
Dogs sometimes fake being sick to get attention.
26
A group of kittens is called a "kindle".
10
Cats and dogs can hear ultrasound.
350
Female kangaroos have three vaginas.
2