Seas and oceans all around the world hold an amazingly varied wealth of sea creatures. In fact, the sea has a ton of undiscovered species. Sea life is very diverse, they are many facts about sea creatures that can be considered unbelievable, enthralling, mesmerizing, and even a little weird.  This blog contains facts about sea most popular sea creatures. It is an excellent resource for kids of all ages looking to learn about animals.

Check out these sea creature facts we bet you didn’t know.

Blue whale

A blue whale is the largest animal on earth. A full-grown blue whale weighs extremely heavy, it can weigh almost as much as 30 elephants. Blue whales can be more than 100 feet long and have the biggest babies on earth.

Sharks

These water monsters are older than dinosaurs and they don’t eat humans! Yes, you heard it right. A shark’s diet doesn’t contain humans. They just bite humans out of curiosity and swim away.

Penguins

Certain species of male penguins gift female penguins with rocks in order to woo them during mating season. How adorable!

Dolphins

Dolphins love to chat. They’re chatty creatures with the most elaborate acoustic abilities in the whole of the animal kingdom. Dolphins can whistle, squeak, squawk, groan, yell, bark, and moan.

Jellyfish

These jelly-like creatures have no heart, no brain, no bones, or eyes. They’re made up of a bag-like body with tentacles that can stun or paralyze prey.

Some species of jellyfish are bioluminescent which means they can produce their light.

Seahorse

These colorful critters have the most fascinating lifecycle nature has to offer.  The female seahorse lays eggs in a pouch of a male seahorse known as a brood pouch.  It takes 45 days for the eggs to hatch. But unlike kangaroos (who also have a pouch) baby seahorses do not return to the pouch.

Octopus

Octopuses have three hearts! Yes, three!  Two of them work exclusively to transfer blood beyond the gills whereas the third one keeps blood circulation flowing to the organs. The heart that supplies to the organ stop beating when the octopus swims that is why they prefer to crawl.

Sea turtles

Turtles have no teeth. They use their beak-like mouth to grasp food and swallow it. And their beaks are made of keratin, the same fibrous protein, found in hair, nails and the outer layer of the skin.

Their shells are made of bones fused together. The bones are light and spongy which helps sea turtles float underwater.

Seals

Want to feel better about your holiday caloric splurge? A mum seal’s milk is almost 50% fat that can make seal pups put 1.5 to 2 kilograms a day.

Sea otters

These adorable sea animals have the thickest fur of any animal. Their fur contains between 500,000 to 100,000 hair follicles per inch. This is because otters lack a blubber layer that other marine mammals have. They depend on their thick fur to keep them warm and insulated.