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National Megalodon Day

Explore the mysteries of the deep on National Megalodon Day - uncover fascinating facts, watch documentaries, and more!

Tuesday

June 2027

Last updated February 7, 2026 · by the Holiday Calendar Team

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YEARLY DATEJune 15

OBSERVED INUnited States

CATEGORYAnimals

SUBCATEGORYWildlife

INTRO

Introduction

PHOTO

Get your diving gear ready to celebrate National Megalodon Day on June 15! This day commemorates the ancient giant shark species, which lived around 2 million years ago. It was one of the largest predatory fish ever known to exist and is believed to have grown up to 50-60 feet in length. Today, this extinct species continues to fascinate people with its remarkable size and power.

TIMELINE

National Megalodon Day Timeline

Early Discovery of Megalodon Teeth

In the 17th century, large triangular fossils were discovered and were later identified as Megalodon teeth.

Scientific Classification

Swiss naturalist Louis Agassiz classified Megalodon as a shark species and named it Carcharodon megalodon.

Reclassification of Megalodon

Paleontologist D.S. Jordan reclassified Megalodon into Carcharocles, distinct from modern white sharks.

Megalodon in Pop Culture

The Megalodon caught popular imagination through books and movies depicting this massive ancient marine predator.

"The Meg" Movie Release

"The Meg", a blockbuster movie about a group confronting a living Megalodon, fascinated audiences worldwide.

First National Megalodon Day

The inaugural National Megalodon Day was celebrated to honor this ancient legendary predator of the sea.

GET INVOLVED

How to Celebrate National Megalodon Day

Watch a Megalodon movie

There are a variety of movies featuring megalodons. From blockbusters like “The Meg” to documentaries like “Megalodon: The Monster Shark Lives”, you can find an entertaining and educational film to watch on National Megalodon Day.

VISIT

Visit a local aquarium

Take a trip to your nearest aquarium and learn more about the anatomy, behavior, and history of megalodons. Many aquariums host special events that focus on these ancient predators during National Megalodon Day.

Go fossil hunting

Heading outdoors is a great way to celebrate National Megalodon Day. Look for fossils in nearby creeks or rivers and try to find evidence of these mysterious creatures from millions of years ago.

CREATE

Create a megalodon craft

Get creative and make your own megalodon! Using construction paper, paint, markers, and other art supplies, you can create an artistic representation of this extinct species.

HOST

Host a megalodon themed party

Invite all your friends over for a fun megalodon themed party! Decorate with blue streamers and hang up pictures of megalodons. Serve food such as shark shaped cookies, popcorn fishbowls, and other sea creature treats.

WHY THIS DAY MATTERS

Why We Love National Megalodon Day

Megalodon fossils can still be found today

Although it has been millions of years since Megalodons have been on Earth, their fossilized teeth and other remains can still be found today. This makes it possible for us to learn more about these incredible ancient creatures and gain insight into what life was like millions of years ago.

Megalodons were huge

Megalodons were some of the biggest predators ever to have lived. With massive teeth measuring around 7 inches and bodies reaching more than 60 feet in length, these ancient creatures were a force to be reckoned with!

Megalodons lived in the Mesozoic era

The Mesozoic era was an interesting time in Earth's history that lasted from 250 million years ago until 65 million years ago. During this period, dinosaurs ruled the land while Megalodons roamed the oceans. It's fascinating to imagine what life could have been like during this time!