Troglobites, or cave dwelling species, often are blind or born without eyes at all. Their environment is so dark that they have no use for eyes and have so well adapted to cave dwelling they would be unable to survive in any other place. Instead, many have developed a sense organ for detecting vibrations and consequently to let them know where objects and potential predators or prey are. Examples are the Blind Cave Tetra which is a cave dwelling fish. The Olm Salamander has no eyes and no color, and Grotto Salamanders also known as Ghost Lizards are born with eyes which are sucked into their bodies as adults. Worms commonly don’t have eyes either.
National Geographic did an excellent write-up on Troglobites called Discoveries in the Dark. It’s fascinating to think about the evolution of these creatures.
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