Seahorse Unit Study

Seahorse Unit Study

We’ve been studying different sea creatures lately, and another amazing animal we’ve been learning about are seahorses. Who knew these tiny animals were so incredibly fascinating? There was so much to learn, in fact, that we developed a seahorse unit study.

About Seahorses

Here are just a few of the interesting facts about seahorses.

The largest seahorse (the Pot-bellied Seahorse) is just over a foot long from the top of its head to the tip of its stretched-out tail. The smallest seahorse (the Pygmy Seahorse) is less than an inch long.

Like chameleons, sea horses can camouflage themselves. They do this not only to hide from predators, but also to stalk their tiny (sometimes microscopic) prey. But unlike chameleons, seahorses can change to whatever color their surroundings might be. They can be red, orange, green, grey, white, yellow, black – whatever they need to be. They can also change their patterns so they blend in perfectly, whether its stripes or polka-dots.  Because of this, it’s difficult to tell the different species apart.

Seahorses are also the only animals in the world is which the male actually becomes pregnant! The female lays about 100 eggs in his pouch. The eggs receive nourishment and oxygen from the pouch, and after a couple of weeks, the male seahorse gives birth.


Intrigued? We were, so I searched out more resources about seahorses. Below are some you could use in your seahorse unit study.

Picture Books

Mister Seahorse by Eric Carle

Over in the Ocean: In a Coral Reef by Marianne Berkes and Jeanette Canyon

Seahorses by Jennifer Keats Curtis

Secret Seahorse by Stella Blackstone

Other Books

Scholastic Reader Level 1: Seahorses by Nicole Course

Nonfiction (for you or an older child): Seahorses – Mysteries of the Ocean by Catherine Wallis


National Geographic for kids – Seahorses

National Geographic – Seahorse


Seahorse Swimming 

Pygmy Seahorse

Seahorse Gives Birth 

Coloring Pages

Tennessee Aquarium

Photo by PacificKlaus

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