1. Prickles as stiff, pointed hairs:
* Hedgehogs: These iconic animals have prickles all over their bodies for defense.
* Porcupines: Similar to hedgehogs, porcupines have sharp, barbed quills that can detach and embed in predators.
* Echidnas: These spiky mammals have prickles that are similar to porcupine quills.
* Some species of rodents: Certain rats and mice have prickles on their backs.
* Caterpillars: Many caterpillar species have stinging prickles that can cause skin irritation.
2. Prickles as modified scales:
* Fish: Some fish, such as pufferfish and sea urchins, have prickles that are modified scales for defense.
* Lizards: Certain lizards, like the spiny lizard, have prickles on their bodies.
3. Prickles as spines:
* Sea urchins: These echinoderms have sharp spines for protection.
* Starfish: Some starfish species have prickles on their arms.
4. Prickles as a general term for sharp projections:
* Birds: Some birds, like the cactus wren, have spiny feathers that can be considered prickles.
* Spiders: Certain spiders, like the tarantula, have prickles on their legs.
It's important to remember that "prickle" is not a strictly defined term in zoology. The specific definition often depends on the context.