When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
The Basenji dog is the only dog that is not able to bark.
4
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
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19