Puffer fish are strange, spiky, and full of surprises. Here are ten facts worth knowing.
- They are among the most poisonous fish in the sea.
- They are the only bony fish that can close their eyes.
- They are masters of self-defence, inflating themselves when threatened.
- Puffer fish don't have scales.
- Some make huge, beautiful nest patterns in the sand.
- Their teeth are fused together and never stop growing.
- Baby puffer fish are cannibals.
- There are over 200 species of puffer fish, living in either fresh or salt water.
- Some puffer fish grow to over 60cm long.
- Dolphins have been known to use them to get high.
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