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May 12, 2015 · Video embedded · SUBSCRIBE HAPPY LEARNING! http://bit.ly/HappyLearningTV Educational Videos and songs for s. Today we’re going to learn about mammals! The diversity of

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It has been generally accepted that eutherians and metatherian mammals evolved from the Order Pantotheria – profile of the ventral border of the dentary bone is

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Your destination for news, pictures, facts, and videos about mammals.

What Makes a Mammal A warm-blooded with a backbone that breathes air, and has at least some hair at some point during its life. The females have glands that

Geopolitically, the quest for marine mammals was responsible for the charting of a number of areas in both Arctic and Antarctic regions. The presence of terrestrial

Origins. Synapsida, a clade that contains mammals and their extinct relatives, originated during the Pennsylvanian subperiod, when they split from reptilian and avian

acquired trait: A phenotypic characteristic, acquired during growth and development, that is not genetically based and therefore cannot be passed on to the next

This work is licensed under a Creative Commons Attribution-NonCommercial 2.5 License. This means you’re free to copy and share these comics (but not to sell them).

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An ecoregion (ecological region) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than an ecozone.

Read about Mammalia (mammals) on the Diversity Web.

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