Science Studies

Animal defenses - download pdf or read online

By Christina Wilsdon

ISBN-10: 1438126050

ISBN-13: 9781438126050

ISBN-10: 160413089X

ISBN-13: 9781604130898

Bugs that appear like leaves, snakes that play useless, fish that fly, and toads with toxic epidermis - those animals are among the creatures that guard themselves in interesting methods. virtually each animal is hunted as foodstuff through another type of animal and has built how you can safeguard itself opposed to predators. "Animal Defenses" offers the big variety of actual and behavioral variations utilized by animals of their fight to outlive and exhibits how scientists proceed to make new discoveries concerning the age-old maneuvering among predator and prey.

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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. It is useful to have “educated” predators in the neighborhood—predators that will steer clear of the prey. The most widely used warning colors are red, orange, yellow, black, or a combination of these. The iron-cross blister beetle, for example, has a black body, red head, and yellow wing covers marked with black bands.

Mammals also make use of spines for protection. Porcupines, for example, fend off predators with spines called quills. There are about 25 species of porcupine. About half of them are found in Europe, Asia, and Africa. The rest are found in Central and South America, with one species living in North America. A North American porcupine is covered with about 30,000 long, sharp quills. 7 cm) long. A porcupine warns enemies before they attack. It lowers its head, lifts its tail, and raises its quills and rattles them.

It also huffs and puffs, hissing like a 30 AnimAl deFenses snake. Another Australian lizard that uses this startle display is the blue-tongued skink, named for its turquoise tongue. An Australian legless lizard called the excitable delma does not have startling colors, but it still spooks predators with its behavior. If bothered, this animal twists and turns its body violently as it slithers away. This odd behavior may startle and confuse a predator. deFlecting An AttAck Startle displays and bluffs can help an animal escape in the nick of time.

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Animal defenses by Christina Wilsdon


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