Can you tell a turtle’s age by counting the rings on its shell?

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Can you tell a turtle’s age by counting the rings on its shell?

The Big Idea

Turtle shells have rings, like tree stumps! Can you count them to tell a turtle's age? Let's find out!

Scute Rings

Step one: Scute Rings. Each plate on a turtle's shell, called a scute, can grow rings as the turtle grows. They look a lot like tree rings.

Not Reliable

Step two: Not Reliable. But counting them isn't a reliable way to count years. Rings can be worn smooth, and a turtle can grow more than one ring in a year when food is plentiful.

Better Clues

Step three: Better Clues. Scientists get a better age estimate from other clues. One is growth lines inside the bones.

A Closer Look

Let's take a closer look! On scutes. Extra rings. Smooths them. Better clue.

Quick Facts

Quick facts! Tree rings are usually a more reliable clock than shell rings. Plenty of food can add extra rings. Bones tell age better. Shell plates are called scutes.

Think Like a Scientist

Now, think like a scientist! Look at photos of a tree stump and a turtle shell. Find the rings on each. Write one way they are alike. Write one way shell rings are trickier to read. Share what you found.

Outro

Turtle shell plates grow rings, but they aren't a reliable way to count years. Rings wear smooth and can form more than once a year, so scientists use better clues like growth lines in bones. Science is amazing! The world is full of surprises. Keep asking big questions, and keep exploring with me! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!