Mammals
Mammals (Class Mammalia) are characterized by mammary glands, hair, a diaphram, a four-chambered heart, and a large cereberal cortex. 70 million years ago when reptile diversity declined, mammals took over habitats once unavailable to them.
Subcategories
Articles About Mammals:
Beavers Help to Reduce Effects of Droughts 
25 Oct 2008
Beavers are key members of the wetland communities they inhabit, especially in times of drought. Scientists from the University of Alberta, Canada, found that when beavers and their dams are present in a habitat, that habitat was nine times...
Beaver Dams Provide Habitat for Songbirds 12 Oct 2008
Beaver dams are important factors in bolstering the diversity of migratory songbirds in the semi-arid regions of western North America. A study conducted by scientists with the Wildlife Conservation Society have discovered that the dams beavers build create ponds....
Scientists Sequence Platypus Genome 16 May 2008
An international team of scientists has decoded the genome of the platypus (Ornithorhynchus anatinus) and in doing so, expects to gain valuable insights into the evolution of mammals. Platypuses represent an ancient branch of mammals that today retains features...
Those Busy Little Chipmunks 13 Dec 2006
I miss the chipmunks that bounced around my yard all summer. I think they are snoozing deep in their burrows these days. But in the warm summer months they served as constant entertainment, scampering across the lawn and hopping...
Saving Britain's Endangered Dormouse 28 Feb 2004
Big efforts are underway to save a small creature in the south of Britain. The tiny hazel dormouse (Muscardinus avellanarius), weighing about 20 grams and measuring less than three inches, has all but vanished from its former range. Over...
by Rachel Carson
by Douglas Adams
by Edward O. Wilson
