Possums have one of the shortest pregnancies at 16 days.
A female oyster produces 100 million young in her lifetime, the typical hen lays 19 dozen eggs a year, and it is possible for one female cat to be responsible for the birth of 20,736 kittens in four years.
More Animals Facts
Elephants have the longest pregnancy in the animal kingdom at 22 months.
The nest that an osprey is a huge and attractive one which is unhidden from sight and the bird adds new material each year to the same old nest. The nest can weigh up to 450 kilograms.