Book 6, Question 68 · Video
Why Is a Whale Shark Not a Whale?
A whale shark is the biggest fish in the sea. It is a shark, not a whale. A whale is a mammal with lungs, while a fish has gills. The whale shark is the biggest fish alive.
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What Crafty Clover says in this video
Intro
Hey there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why is a whale shark not a whale?
The Big Idea
A whale shark is the biggest fish in the sea. It is a shark, not a whale. A whale is a mammal with lungs, while a fish has gills. The word whale in its name just means it is huge.
Check for Gills
Step one: check for gills. A whale shark breathes underwater with gills, like other fish. A whale breathes air with lungs, and has a blowhole on top of its head.
Check the Skeleton
Step two: check the skeleton. A whale shark has a bendy skeleton made of cartilage, like other sharks. A whale has a bony skeleton, like you do.
Check How Babies Are Fed
Step three: check how babies are fed. Whale mothers make milk for their calves. Fish do not make milk. Gills and a cartilage skeleton say fish. Lungs and milk say mammal.
A Closer Look
Let's take a closer look at the two animals! The whale shark is a fish. It breathes with gills. The whale is a mammal. And it breathes air with lungs.
Quick Facts
Quick facts! The whale shark is the biggest fish alive. It eats tiny plankton, a bit like some giant whales do. Each whale shark has its own spot pattern, like a fingerprint. And never stand on or ride a whale shark. Look from a boat.
Think Like a Scientist
Now, think like a scientist! Name two traits that prove an animal is a fish. Name two traits that prove an animal is a mammal. Now sort a shark, a whale, and a dolphin into the right group. What traits proved each one?
Outro
Whale in the name is size talk. The animal is a shark. Science is amazing! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!