Why do flying birds have a tall ridge on their chest bone?

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why do flying birds have a tall ridge on their chest bone?

The Big Idea

Flying takes powerful muscles. And those muscles need a strong anchor. Why do birds have a tall ridge on their chest bone?

Strong Muscles

Step one: Strong Muscles. Flying takes strong muscles, and strong muscles need something firm to hold on to. In strong fliers, the flight muscles make up a big part of the bird's body weight.

The Keel

Step two: The Keel. A bird's breastbone has a tall ridge called the keel. It sticks out like the keel on the bottom of a boat.

Attached Tight

Step three: Attached Tight. The big muscles that flap the wings are attached to the keel. The taller keel gives them lots of room to attach and pull.

A Closer Look

Let's take a closer look! Tall ridge. Attach here. Holds the keel. Flap hard.

Quick Facts

Quick facts! Birds that can't fly, like ostriches, have a flat breastbone with no keel. The keel is named after a boat's keel. Flight muscles make up much of a bird's weight. Strong fliers have tall keels.

Think Like a Scientist

Now, think like a scientist! Find a picture of a bird skeleton. Point to the tall ridge on the breastbone. Trace where the big wing muscles would attach. Compare it with an ostrich skeleton if you can. What difference do you notice?

Outro

Flying needs strong muscles that hold on tight. A bird's breastbone has a tall ridge called the keel, like a boat's, and the big flight muscles attach there, while birds that can't fly, like ostriches, have no keel. 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!