Cats and dogs can hear ultrasound.
350
Whales and dolphins can't taste anything other than salt.
11
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
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
Lobsters have blue blood.
476
Only 3% of bird species have penises.
0
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492