While walking on all fours they can be around 5ft/ 1.6m tall. Polar bears are the largest of the bear species. 

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Blanket Octopuses will rip off their penis for the female to use alone

Leafy sea dragons are a rare fish that resemble seaweed and can change color

American kestrels are also the most colorful of all the raptors, hunt in open-habitats, and are about the size of a Mourning Dove.

Hummingbirds sitting on a branch

Hummingbirds have started migrating back to North America 

It takes about 5 years for a Bald Eagle to develop a white head

Hummingbirds fly solo rather than in flocks