Vertebrates
- Vertebrates are animals that have a spinal column.
- Fish, frogs, and reptiles are examples of vertebrate animals.
- They are believed to have evolved around 530 million years ago during the Cambrian period.
- There are around 57,000 species of vertebrates inhabiting the Earth.
Interesting Facts about Vertebrates
- Only 2% of all animal species are vertebrates.
- The first vertebrates were toothless fish known as agnathans.
- They have muscles and skeletons.
- Most vertebrates have very advanced nervous systems.
General Information
- Reptiles breathe through the lungs.
- Dinosaurs were reptiles that laid eggs in nests.
- Some birds like penguins and ostriches cannot fly.
- Mammals are warm-blooded and give birth to live young ones.
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