Octopus fact

Grizzly bear's sense of smell...

A sea squirt digests its own brain. It spends the early portion of its life as tadpole-like creature. It then permanently attaches itself to the ocean floor. Since it is stationary from this point on, it has no use for its brain

The blue whale largest animal that has ever lived on the planet Earth

Hippopotamuses kill more people each year than lions, leopards, and elephants combined