A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
In order to enhance the taste, Japanese macaque wash their food in salt water before they eat. They also make snowballs for fun!
7
A domestic cat can sprint at about 31 miles per hour.
274
Nicole Kidman is scared of butterflies.
65
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
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Dogs have been man's pet for over 14,000 years.
224