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Animals with and without a backbone
Age 10 · Animals
Open to everyone until Thursday, October 29
To keep it, print it while it is open.
Some animals have a backbone, a chain of small bones down their back, and we call them vertebrates. Animals with no backbone at all are called invertebrates, and many of them have a shell or a hard outer skin instead.
In the picture
- Trout: a fish, a vertebrate with a backbone
- Rabbit: a mammal, a vertebrate with a backbone
- Snail: an invertebrate with a soft body and a shell
- Crab: an invertebrate with a hard outer shell but no backbone
Examples
- When you stroke a cat’s back, you can feel its backbone, so a cat is a vertebrate.
- A ladybird crawling on a leaf has no backbone, so it is an invertebrate.
Key takeaways
- Fish, amphibians, reptiles, birds and mammals are all vertebrates.
- Most animal species on Earth are invertebrates.
Quiz: Animals with and without a backbone (Age 10)
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What makes an animal a vertebrate?
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A crab has a hard outer shell. Is it a vertebrate?
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Which group do most animal species on Earth belong to?
The answers, each with its explanation, are in the app. This quiz is free there while the lesson is in the free week.
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