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This video goes over the structures and functions of flowers and how they produce fruit.

Evolution has produced some masterful solutions for animals to avoid predation. Look no further than the camouflage abilities of the dead leaf butterfly, the flower mantis, or the freaky vanishing octopus for proof.

But, a new study takes trickery to a whole new level. Researchers have discovered that the tropical harlequin filefish camouflages its scent by eating the coral it lives on, so as to blend into the olfactory background. It's the first time a vertebrate animal has been found to practice such smell-deception.

Published by McGraw-Hill, a business unit of The McGraw-Hill Companies, Inc., 1221 Avenue of the Americas, New York, NY 10020. Copyright © 2003 by Dr. Larry Jensen. All rights reserved.