NATIONAL DAYSCIENCE & TECH

National Dueling Dinosaurs Day

On National Dueling Dinosaurs Day, we make a little room on the calendar for the thing that makes us who we are.

APR25

Saturday, April 25Last Saturday in April

Roots: Established in 2025 by Dr. Bruce Worf and the North Carolina Museum of Natural Sciences
Vibe: Exciting and educational
Also on Apr 25: Parental Alienation Day · World Penguin Day · World Malaria Day
Hashtag: #NationalDuelingDinosaursDay

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Ways to celebrate

Small, doable ways to celebrate National Dueling Dinosaurs Day.

Do one small thing that makes the day feel marked.
Tell someone what you're celebrating and why.
Share a post, a photo, or a memory connected to it.
Make a tiny tradition — something you could do again next year.
Let it be simple. Not every celebration has to be a production.

Make it your kind of celebration

Family
Do one small thing together that everyone will remember.
Kids
Turn it into a craft, a story, or a snack — meet them where they are.
Couples
Use the day as an excuse for a little intentional time together.
Office
Acknowledge the day in the team chat or at a stand-up. Small, sincere, fast.
School
Anchor a short lesson or activity around the day.
Community
Share, volunteer, or donate to make the day mean something locally.
Just me
Celebrate quietly and completely. One person can still mark a day.

Plan ahead

National Dueling Dinosaurs Day is observed on the last Saturday in April. Here is where it lands for the next ten years, handy for planners, marketers and party people.

2026Sat, Apr 25this year

2027Sat, Apr 24

2028Sat, Apr 29

2029Sat, Apr 28

2030Sat, Apr 27

2031Sat, Apr 26

2032Sat, Apr 24

2033Sat, Apr 30

2034Sat, Apr 29

2035Sat, Apr 28

2036Sat, Apr 26

Add to my calendar (repeats yearly)

Fast facts

Over 700Species of dinosaurs have been identified

Dinosaurs lived approximately 230 to 65 million years ago

The story

National Dueling Dinosaurs Day is observed on the last Saturday in April. The day was secured in 2025 by Dr. Bruce Worf on behalf of the North Carolina Museum of Natural Sciences, inviting enthusiasts of all ages to delve into the captivating world of dinosaurs and one of the most remarkable fossil discoveries ever made. Whether through museums, documentaries, or books, the day is dedicated to learning and celebrating the diversity of dinosaurs that roamed the Earth millions of years ago.

Read the full story

The most famous dinosaur rivalry is often depicted as the clash between the Tyrannosaurus rex and the Triceratops. These two species represent the apex predator and its formidable prey, each showcasing unique adaptations that fueled their survival. Dinosaurs like the T. rex, with its powerful jaws, and the Triceratops, equipped with protective horns, highlight the intricate balance of prehistoric ecosystems. Understanding their interactions helps us appreciate evolutionary biology's complexity.

In 2006, Montana rancher Clayton Phipps and his associates discovered two remarkably preserved dinosaur skeletons in the Hell Creek formation, a Tyrannosaur and a Triceratops appearing to be in the final stage of a battle that took place around 67 million years ago. This Dueling Dinosaurs find offers insight into the behavior of these ancient creatures and their environment. Such discoveries continue to inform our knowledge of dinosaur biology and behavior, bridging the gap between past and present.

Celebrating National Dueling Dinosaurs Day can inspire a new generation of paleontologists and dinosaur enthusiasts. Schools often engage students with interactive exhibits and lessons that make learning about these creatures fun and memorable. Families can enjoy activities together, from visiting local museums to creating dinosaur-themed crafts. As we explore the legacy of dinosaurs, we foster a deeper appreciation for the history of life on Earth.

Did you know?

Did You Know?

The word 'dinosaur' comes from the Greek words 'deinos' (terrible) and 'sauros' (lizard).

Longest Dinosaur

The Argentinosaurus is believed to be one of the longest dinosaurs, reaching lengths of over 100 feet.

Fossil Age

Some fossils date back over 500 million years, long before dinosaurs existed.

Bird Connection

Modern birds are considered the closest living relatives of dinosaurs.

Colorful Dinosaurs?

Paleontologists are beginning to understand the colors of dinosaurs through fossilized remains.

Dinosaur Extinction

Dinosaurs went extinct approximately 65 million years ago, likely due to a massive asteroid impact.

Dino Discoveries

New dinosaur species are still being discovered, expanding our knowledge of this ancient group of animals.

Around the world

Every culture celebrates a little differently.

USUnited StatesHome to some of the most significant dinosaur fossil sites in the world.
CACanadaKnown for the rich fossil beds of Alberta, showcasing diverse dinosaur species.
AUAustraliaHosts unique dinosaur discoveries, including the enormous Australovenator.
GBUnited KingdomThe UK has yielded many important dinosaur fossils, contributing to our understanding of their evolution.
BRBrazilHome to some of the largest dinosaur fossils found in South America.
CNChinaSignificant discoveries in China include feathered dinosaurs, reshaping our understanding of their evolution.