The balance of biodiversity within North American small-mammal communities is so out of whack from the last episode of global warming about 12,000 years ago that the current climate change could push them past a tipping point, ...
Ecology
May 23, 2010
4
0
An international team of scientists have discovered that climate change played a major role in causing mass extinction of mammals in the late quaternary era, 50,000 years ago. Their study, published in Evolution, takes a ...
Evolution
May 18, 2010
0
2
Picture a dinosaur. Huge, menacing creatures, they ruled the Earth for nearly 200 million years, striking fear with every ground-shaking stride. Yet these great beasts were no match for a 6-mile wide meteor that struck near ...
Plants & Animals
Jan 28, 2010
1
0
If the planet is headed for another mass extinction like the previous five, each of which wiped out more than 75 percent of all species on the planet, then North American mammals are one-fifth to one-half the way there, according ...
Ecology
Dec 17, 2009
5
0
A University of Florida researcher has co-authored a study tracing the evolution of the modern opossum back to the extinction of the dinosaurs and finding evidence to support North America as the center of origin for all ...
Archaeology
Dec 16, 2009
0
0
A new fossil species suggests that some land animals may have survived the end-Permian extinction by living in cooler climates in Antarctica. Researchers have identified a distant relative of mammals that apparently survived ...
Earth Sciences
Dec 2, 2009
0
0
(PhysOrg.com) -- Their size and fearsome appearance have made them the stuff of nightmares, but new research just published suggests that sharks may not be as tough as they appear.
Ecology
Nov 17, 2009
0
0
(PhysOrg.com) -- Were dinosaurs endothermic (warm-blooded) like present-day mammals and birds or ectothermic (cold-blooded) like present-day lizards? The implications of this simple-sounding question go beyond deciding whether ...
Plants & Animals
Nov 11, 2009
1
1
Almost 10 percent of the world's mammals, birds, reptiles, amphibians and fish are in danger of extinction due to climate change and other factors, according to an Australian report released Tuesday.
Ecology
Sep 29, 2009
0
0
(PhysOrg.com) -- Scientists in Uruguay studying extinct mammals called glyptodonts have discovered they used a "sweet spot" in their tails, just like baseball players use the center of percussion (CP), or sweet spot, in their ...
