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Zoology
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Amphibian morphology and reproduction
Last Updated on 2013-03-29 at 15:31
Skin
An amphibian's very thin skin isn't covered by fur, feathers, or scales. This makes them vulnerable to dessication and abrupt temperature... More »
Disappearing Jewels: Chapter 1
Last Updated on 2013-02-05 at 21:59
Amphibians occupy an enigmatic position in the public consciousness, even among the environmentally aware. While we know that frogs, toads, and salamanders are all around us,... More »
Mollusca
Last Updated on 2012-11-15 at 11:46
Introduction
Molluscs are soft-bodied invertebrates whose main features are a foot for locomotion, a mantle which secretes a hard calcium shell, a general head... More »
Aleutian Islands tundra
Last Updated on 2012-08-26 at 11:42
The Aleutian Island chain extends from the Alaska Peninsula almost 1,500 kilometers (km) to the east between the Bering Sea and the Gulf of Alaska. It is composed of a series... More »
Northeastern Himalayan subalpine conifer forests
Last Updated on 2012-08-09 at 22:25
Subalpine coniferous forests of pine, hemlock, spruce and fir grow on valley slopes where rivers of the Tibetan Plateau cut through the Himalaya. Steep, inaccessible terrain... More »
Eastern Cordillera real montane forests
Last Updated on 2012-08-02 at 19:01
This tropical montane forest ecoregion is located on the eastern slopes of the middle Andes, extending north-south from southern Colombia, through Ecuador, and into northern... More »
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