Ten Astonishing Facts About Ocean Animals, You Probably Don’t Know

Do you want to know what ocean animal has blue-colored blood or a sea creature that has no heart, lungs, and brain and yet it lives. To find the answers, just sit down, relax and enjoy reading the rest of the article.

Blue, blue our Earth is blue.. Yes, since 75% of the Earth’s surface is covered by water. The ocean alone is home to more than 200,000 known species. Perhaps, thousands more sea marine animals are there to be discovered since only 5% of the Earth’s oceans have been explored. Below are 10 astonishing facts about ocean animals that you probably don’t know.


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Turtles are reptiles characterized by their bony shell. These cold-blooded animals are one of the oldest reptilian where earliest known species have lived about 200 million years ago.


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Jellyfish comprised the phylum Cnidaria where most species inhabit sea water, but a few species prefers fresh water. Fossils suggest that these gentle creatures have roamed the seas for at least 500 million years.


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Shrimps are crustaceans characterized by their long antennae and long, narrow muscular abdomens. Shrimps are widespread, with most marine species living at depths of up to 5,000 meters. there are a few fresh water shrimps found near rivers and lakes.


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Electric Eel

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Sea Sponges

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Blue Whales

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11 thoughts on “Ten Astonishing Facts About Ocean Animals, You Probably Don’t Know

  1. nova hedges

    Things I don't definitely recognize and realized they do exists, the shrimp does look weird amongst the ordinary shrimp.

  2. Karen @ MrsLookingGood

    Add to that the Octopus has 3 hearts! Sometimes you wonder what's the purpose of having 3 hearts at the same time, right?

  3. Chubskulit Rose

    I grew up seeing most of these in the shore, kind of miss it now that I live here in the mountain hehehe.

  4. Tingting R.

    I love shrimps! But looking at the one in the picture, it kinda scares me. I am glad I do not eat the head, that is creepy to know the heart is in there. 🙂

  5. Juliana

    These are very interesting pieces of information. After reading this post, I'm glad I've gained more knowledge about ocean animals 🙂

  6. Fernando Lachica

    The Octopus has 3 hearts and a blue colored blood? Now I know these facts. thanks for sharing.

  7. Rochkirstin Santos

    Whoa I can't believe that a creature can live without a heart. That's just incredible! I thought sea sponges are plants hehe.

  8. Franc

    Great new trivias for us. We just adore these sea creatures. It's nice to get to know more about them.

  9. Leilani Gamboa

    wow, i have discovered a lot in this post, haha Very informative, worth sharing especially to students.

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