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How Diving Marine Mammals Manage Decompression
December 21, 2011 — How do marine mammals, whose very survival depends on regular diving, manage to avoid decompression sickness or "the bends?" Do they, indeed, avoid ... > full story -
Immunity Against the Cold
December 13, 2011 — Throughout the interior spaces of humans and other warm-blooded creatures is a special type of tissue known as brown fat, which may hold the secret to diets and weight-loss programs of the ... > full story -
Ancient Meat-Loving Predators Survived for 35 Million Years
December 6, 2011 — A species of ancient predator with saw-like teeth, sleek bodies and a voracious appetite for meat survived a major extinction at a time when the distant relatives of mammals ruled the ... > full story -
Pristine Reptile Fossil Holds New Information About Aquatic Adaptations
November 16, 2011 — Extinct animals hide their secrets well, but an exceptionally well-preserved fossil of an aquatic reptile, with traces of soft tissue present, is providing scientists a new window into the behavior ... > full story -
Fossil Moths Show Their True Colors
November 15, 2011 — The brightest hues in nature are produced by tiny patterns in, say, feathers or scales rather than pigments. These so-called "structural colors" are widespread, giving opals their fire, people their ... > full story -
Whiskers Marked Milestone in Evolution of Mammals from Reptiles
November 10, 2011 — New research comparing rats and mice with their distance relatives the marsupial, suggests that moveable whiskers were an important milestone in the evolution of mammals from ... > full story -
No Need to Shrink Guts to Have a Larger Brain
November 9, 2011 — The so-called expensive-tissue hypothesis, which suggests a trade-off between the size of the brain and the size of the digestive tract, has been challenged. Researchers have now shown that brains in ... > full story -
'Saber-Toothed Squirrel': First Known Mammalian Skull from Late Cretaceous in South America
November 2, 2011 — Paleontologists have discovered two skulls from the first known mammal of the early Late Cretaceous period of South America. The fossils break a roughly 60 million-year gap in the currently known ... > full story -
Humans and Climate Contributed to Extinctions of Large Ice Age Mammals, New Study Finds
November 2, 2011 — Both climate change and humans were responsible for the extinction of some large mammals, according to research that is the first of its kind to use genetic, archeological, and climatic data together ... > full storyMore: -
First North American Hunters 1,000 Years Earlier Than Previously Thought, Speared Mastodon Fossil Shows
October 20, 2011 — A new and astonishing chapter has been added to North American prehistory in regards to the first hunters and their hunt for the now extinct giant mammoth-like creatures -- the mastodons. New ... > full storyMore:
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