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The leaves of a holly plant have prickles along the edges, providing defense against browsing animals.
Some species of nettles have stinging hairs that act as prickles, delivering a painful sting when touched.
Cacti have numerous prickles covering their surface, which help reduce water loss and deter herbivores from feeding on them.
The stem of a blackberry bush is covered in prickles, making it difficult for animals to reach the fruit without getting scratched.
Roses are known for their thorns, which are actually prickles that help protect the plant from being eaten by animals.
