Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
The seahorse is the only fish to have a neck.
12
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
A group of unicorns is called a blessing.
304