Rattlesnake mating sessions have been known to last more than 22 hours.
232
The head of a jellyfish is called the "Bell."
6
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
A group of pugs is called a grumble.
10
A domestic cat can sprint at about 31 miles per hour.
274
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11