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وبلاگ دامپزشک - بانک مقالات دامپزشکی - مهمترین تصاویر خبری از دنیای حیوانات در سال 2012

آخرین روزهای سال 2012 را پشت سر می گذاریم به همین مناسبت نشریه معتبر نشنال جئوگرافیک اقدام به انتشار مهمترین تصاویر خبری این سال کرده است ، تعدادی از این تصاویر  مربوط به دنیای حیوانات است و مشاهده ی آنها خالی از لطف نیست!

Spiderwebs Blanket Australia

Photograph by Daniel Munoz, Reuters

In an arachnophobe's worst nightmare, swarms of spiders spin webs in a bush in flood-ravaged Wagga Wagga (map), Australia, in March.

After a week of record rain, floodwaters across eastern Australia forced the ground-dwelling spiders—and at least 13,000 people—to flee their homes, according to Reuters.

The rampant webs blanketing vast stretches of Wagga Wagga are failed attempts at "ballooning"—spinning web "kites" to ride the wind. (Related: "Pictures: Trees Cocooned in Webs After Flood.")

Photograph courtesy NERC CHESSO Consortium

An unnamed new species of Yeti crab swarms near hot, mineral-rich hydrothermal vents in the oceans off Antarctica—a newfound "lost world" of strange deep-sea species, scientists say. (See picture: "'Yeti Crab' Discovered in Deep Pacific.")

A camera-equipped submersible robot filmed species such as barnacles, crabs, anemones, and even an octopus, all of which are mostly colorless and live in utter darkness at depths of 7,875 feet (2,400 meters), according to a January study.

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Lost World" in Antarctica

Photograph courtesy Tom Mannering

A shark was caught on camera making a meal of another shark along Australia's Great Barrier Reef in February. The pictures show a tasseled wobbegong halfway through swallowing a brownbanded bamboo shark.

Daniela Ceccarelli and David Williamson, from Australian Research Council's Centre of Excellence for Coral Reef Studies, chanced on the spectacle while conducting a fish census on the fringing reef off Great Keppel Island.

"The first thing that caught my eye was the almost translucent white of the bamboo shark," Ceccarelli said in an email. Expecting to find the front part of the bamboo shark hidden under a coral ledge, Ceccarelli swam closer—and the highly camouflaged wobbegong materialized. (Related pictures: "Sharks Taught to Hunt Alien Lionfish.")

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New-Species "Heaven" in Peru

Photograph courtesy Alexander Pari

A new species of night monkey (pictured) is one of eight new mammals found during an expedition to northern Peru's Tabaconas Namballe National Sanctuary (map), scientists announced in September.

A team of Mexican and Peruvian biologists found this "new heaven of unknown biodiversity" during a 2009-2011 expedition, according to a press statement. (See "Pictures: Bushy-Bearded Titi Monkey Discovered.")

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Limbless Amphibians Discovered

Photograph courtesy S.D. Biju

They aren't worms or even snakes. They're soil-burrowing, limbless amphibians, and they're completely new to science, a February study suggested.

Pictured guarding a brood of eggs in its native northeastern India, the animal above is one of about six potentially new species belonging to a mysterious group of animals called caecilians. What's more, the newfound critters represent an entirely new family of amphibians. (Photos: Rainbow Hues of Amphibian 'Worms' Demystified.")

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Miniature Chameleons Found

Photograph courtesy Frank Glaw

Match-tip tiny, Brookesia micra (juvenile pictured) is the smallest of four new chameleon species found on the island country of Madagascar, scientists reported in February.

With an average adult length of just over an inch (2.9 centimeters) from snout to tail, B. micra is among the tiniest reptiles in the world. But the diminuitive critter turned out to be huge on the Web—this was the most visited gallery of 2012. (Related: "Record-Breaking Chameleons Live Only a Few Months.")

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