The topic of Sea stars: Defenses is covered in 9 sub-sections:
- SPINES & OSSICLES
- PEDICELLARIAE
- TUBE-FEET ANCHORING
- ESCAPE BY CRAWLING
- RIGHTING RESPONSE
- DISTASTEFUL CHEMICALS
- MUCUS
- AUTOTOMY
- CAMOUFLAGE
With a few exceptions, sea stars are generally slow moving, visually obvious, and prone to sit out in the open. Other than escape by crawling, arm autotomy, and biting with pedicellariae (for those that have them), most defenses are passive.
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