Happy Pufferfish Swimming Underwater
A cheerful side view shows a rounded pufferfish displaying distinct fins and small spots on its back.

A4 format (landscape), black outlines on a white background · for home and classroom use
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A Cheerful Pufferfish in Profile
Positioned in the center, this side view features a rounded pufferfish with an oval body shape. Two prominent spots sit on its back, and its dorsal, pelvic, pectoral, and tail fins spread outward around its smooth torso.
How Pufferfish Protect Themselves Underwater
When threatened by predators, a pufferfish swallows large amounts of water or air to inflate its body into a round ball. This sudden shape change makes the fish much harder for bigger ocean creatures to swallow. In addition, nearly all pufferfish species contain a powerful natural toxin that deters marine predators from eating them.
Natural Colors of Pufferfish
- Body: yellow, olive green, brown, or sandy gray along the back
- Belly: pale cream or pure white
- Spots and markings: dark brown, black, or deep blue
- Fins: yellowish, translucent gray, or light brown





