The creature, known scientifically as Turritopsis nutricula is an "immortal" jellyfish, it was discovered in the Mediterranean Sea in 1883.

Octopuses have three hearts.

Butterflies can taste with their feet.

Sharks kill fewer than 10 people per year. Humans kill about 100 million sharks per year.

Wild dolphins call each other by name.

Young goats pick up accents from each other.

Humpback whale songs spread like "cultural ripples from one population to another."

Squirrels can't burp or vomit.

owls have three eyelids. One is for blinking, one is for sleeping, and one is for keeping their eye "tubes" clean.

Owls don't have eyeballs — they're more like eye tubes. They're elongated and held in place by a bony structure in the skull called sclerotic rings.

Animals with smaller bodies and faster metabolism see in slow motion.

The extinct colossus penguin stood as tall as LeBron James.

Barn owls are normally monogamous, but about 25 percent of mated pairs "divorce."

Polar bears have black skin.

A group of parrots is known as a pandemonium.

Warmer weather causes more turtles to be born female than male.

African buffalo herds display voting behavior, in which individuals register their travel preference by standing up, looking in one direction and then lying back down. Only adult females can vote.

Honeybees can flap their wings 200 times every second.

The claws of a mantis shrimp can accelerate as quickly as a .22-caliber bullet.

A single strand of spider silk is thinner than a human hair, but also five times stronger than steel of the same width. A rope just 2 inches thick could reportedly stop a Boeing 747.

A supercolony of invasive Argentine ants, known as the "California large," covers 560 miles of the U.S. West Coast. It's currently engaged in a turf war with a nearby supercolony in Mexico.

By eating pest insects, bats save the U.S. agriculture industry an estimated $3 billion per year.

A sea lion is the first nonhuman mammal with a proven ability to keep a beat.

Squirrels are responsible for planting thousands of trees worldwide

Rats laugh when tickled

Baby elephants self-soothe by sucking their trunk

Male seahorses give birth to their young, Male seahorses have pouches on their stomachs which carries up to 2,000 babies at a time.