What are all the defense parts in an animals body?

Answer 1

Hey, this really depends on which animal your talking about. I'll use three examples: dogs (Canis Lupus Familiaris), stonefish (Synanceia verrucosa) and the poison dart frog family (Dendrobatidae).

In a dog, the defensive body parts are primarily the teeth. This is because as a carnivore, dogs naturally have large, sharp teeth for ripping or tearing. The claws are another defensive body part, however this is more a definition point as any claw can be considered defensive, despite the very rare usage as a defense mechanism.

In the stonefish, a type of ambush-hunting fish, the primary defense mechanism is a neurotoxin which is stored in a poison sac, and is connected to a poisonous dart on it's dorsal fin. This means that when the stonefish is threatened, it stabs the attacker with the spine, which injects Avery potent and often deadly neurotoxin into the victim, killing or incapacitating it. Its other main defense is its superb camouflage, which makes it almost indistinguishable from dead coral or a rock. Its final defense is the mouth, which is filled with very sharp needle-like teeth. This is the last resort, as unlike the dog it has fine, needle-like teeth ideal for holding or gripping fish, not for attacking prey.

Finally, the Poison Dart Frogs. This is a family of critically endangered frogs which are found in the Amazonian and South American rainforests. It has only one defense, and that is a lipophilic alkaloid toxin (essentially a form of nerve poison) secreted through the skin. When the frog is caught in a predators mouth the frog secretes a poison and then escapes.