Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
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
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
When cats are happy, they may squeeze their eyes shut.
10
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212