Considering the vast array of invertebrates on Earth, interesting defense mechanisms abound. Octopuses, molluscs which evades mostly by camoflauge, can squirt ink from its ink sacs. Even amongst the same class defense mechanisms differ: some spiders, such as the black widow, have an extremely venomous bite, while scorpions possess a venomous stinger on their tails. Alternatively, sea cucumbers can excrete their internal organs from their anus in order to avoid danger.
I’d say the symbiotic relationship between hermit crabs and anemones are some of the most interesting forms of defense. The hermit crab (the invertebrate in this instance) invite the anemone to live on it’s back (and in some species, right on their claws!) and scare away predators with their infamous stinging tentacles. Meanwhile the anemone eats the food missed by the hermit crab.
I find the phemenon of bioluminescence to be quite fascinating. Though it is not unique to invertebrates, there are a number of invertebrates species, such as jellyfish, fireflies, and squid, that exhibit this process. Bioluminescence is the process by which certain organisms are able to emit light. This light is a result of chemicals (luciferin and luciferase) reacting with oxygen. This process is not used exclusively for defense; it can also serve as a means of communication or a tool for hunting (using light as a bait).
Jelly fish have really powerful stingers, and I’ve always admired the simplicity of the humble clam shell. Though they can dig and escape.
Click here to cancel reply.
Sorry,At this time user registration is disabled. We will open registration soon!
Don't have an account? Click Here to Signup
© Copyright GreenAnswers.com LLC