Download Animal defenses by Christina Wilsdon PDF

By Christina Wilsdon

Bugs that appear like leaves, snakes that play lifeless, fish that fly, and toads with toxic pores and skin - those animals are among the creatures that safeguard themselves in interesting methods. virtually each animal is hunted as nutrients by means of another form of animal and has constructed how one can shield itself opposed to predators. "Animal Defenses" offers the wide range of actual and behavioral diversifications utilized by animals of their fight to outlive and indicates how scientists proceed to make new discoveries concerning the age-old maneuvering among predator and prey.

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A poisonous animal does this with warning colors, foul tastes, bad smells, irritating chemicals, and sometimes sounds. wArning colors Bright colors help many animals find others of their species and communicate with them. They may also help hide animals in their habitats. Yet, bright colors can also be warning colors. Many animals that are poisonous, bad tasting, or both are clad in warning colors. The colors say to predators, “Don’t even think of attacking me. ” A predator that licks, mouths, or bites an animal with warning colors often drops or spits out its prey.

A predator that licks, mouths, or bites an animal with warning colors often drops or spits out its prey. The prey may taste bad, or irritate the predator’s mouth. If the prey’s poison is strong, it may also make the predator feel sick and throw up. After one or more experiences like this, the predator learns that it is a bad idea to attack this sort of prey. It is unlikely to go after another animal that looks like this disastrous meal. Disgusting or sickening a predator in this way may be a better strategy for a prey animal than killing the predator.

The skink’s tail later grows back. The broken-tail trick is used by many kinds of lizards, even ones that do not have brightly colored tails. Geckos, anoles, and iguanas all can shed their tails. This is also true of some legless lizards, which are called “glass snakes” because of the way their tails shatter when they break. The predator doesn’t break these lizards’ tails: The lizards do it themselves. The movement of muscles in the tail causes one of the tailbones to snap in half. Some rodents can also shed part of their tails.

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