Download Animal defenses by Christina Wilsdon PDF

By Christina Wilsdon

Bugs that seem like leaves, snakes that play useless, fish that fly, and toads with toxic pores and skin - those animals are one of the creatures that protect themselves in attention-grabbing methods. nearly each animal is hunted as meals via another form of animal and has constructed how one can guard itself opposed to predators. "Animal Defenses" provides the wide range of actual and behavioral variations utilized by animals of their fight to outlive and exhibits how scientists proceed to make new discoveries in regards to the age-old maneuvering among predator and prey.

Show description

Read Online or Download Animal defenses PDF

Similar science studies books

Wonders of the Sea

Popular tale teller, Kendall Haven brings his services as an oceanographer to the authorship of this 3rd publication in a 4- booklet sequence meant for lecturers to take advantage of with scholars within the higher ordinary and center tuition grades. It specializes in average phenomena of the ocean (tides, tsunamis, sea spouts, titanic squid, killer whales) throughout the eyes of historical fable and appears on the modern-day technology that explains every one fable, utilizing the interdisciplinary form of educating.

Environmental Disasters (Disasters Up Close)

Environmental mess ups is a part of the mess ups Up shut sequence. It explores failures similar to the 1986 explosion on the Chernobyl nuclear energy plant within the Ukrainea tragic occasion that spewed radioactive airborne dirt and dust in the course of the kingdom, contaminating land and farm plants and exposing numerous humans to harmful degrees of radiation.

Extra info for Animal defenses

Example text

A bird called the snail kite is named for its habit of eating almost nothing but apple snails. Its slim, hooked bill fits neatly into the spiral of an apple snail’s shell. The bill’s sharp tip snips a muscle in the snail, releasing the snail from its shell. The oystercatcher, a bird that feeds on ocean shores, patrols shellfish beds to look for mussels or oysters with slightly opened shells. The bird stabs its long, sharp bill into one of these open shells, quickly cutting the muscles that clamp the shell closed.

The predator gets nothing but a bony mouthful. 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.

Furthermore, it was the same kind of poison found in poison dart frogs. people living in new guinea’s forests already knew to avoid the pitohui. they called it the “garbage bird” and told scientists that just being near it made them sneeze and made their noses, mouths, and eyes burn. people who ate the birds felt sick to their stomachs. scientists now want to find out how the birds became poisonous. they have found the same poison in a red-andblack beetle that pitohuis eat, so the birds might have become poisonous by eating poison themselves.

Download PDF sample

Rated 4.13 of 5 – based on 10 votes