Posts Tagged ‘mammals’
Mouse to elephant in 24M generations
MONASH (AUS) — A new study says that it would take 24 million generations for a mouse-sized animal to evolve to the size of an elephant. Continue…
Tuesday, January 31, 2012 12:11 - 16 Comments
Science & Technology - Dec 28, 2011 11:05 - 1 Comment
Climate spurs 65M years of evolution
BROWN (US) — Climate change profoundly influenced the rise and fall of six distinct and successive waves of mammal diversity in North America over the last 65 million years, new research shows. (more…)
Science & Technology - Nov 11, 2011 13:48 - 0 Comments
Whiskers’ key role in reptile-mammal split
U. SHEFFIELD (US) — New research comparing rats and mice with marsupials suggests moveable whiskers were an important milestone in the evolution of mammals from reptiles. (more…)
Science & Technology - Sep 27, 2011 11:04 - 0 Comments
‘Invasion’ moved mammals from egg to womb
YALE (US) — More than 100 million years ago, genetic parasites invaded the mammalian genome, changing the uterus in the ancestors of humans and other mammals from egg producers to a home for developing young. (more…)
Top Stories - Aug 29, 2011 10:26 - 6 Comments
Preserve 4% of oceans to save mammals
STANFORD (US) — Set aside some carefully chosen marine preserves, and marine mammals such as otters and whales may survive the damage to the oceans caused by humans, a new study finds. (more…)
Science & Technology - Jun 28, 2011 12:40 - 0 Comments
How we chew: It’s all in the tongue
BROWN (US) — Beginning with early amphibians, mammals and fish took divergent evolutionary paths, using their tongue in different ways to chew and digest their food. (more…)
Science & Technology - May 19, 2011 14:55 - 0 Comments
Big brains gave mammals strong sniffers
U. TEXAS-AUSTIN (US) — Scientists used CT scans to reconstruct the brains of two early mammals and discovered that they had larger-than-expected brains, particularly in the area for smell. (more…)
Health & Medicine - Jul 6, 2010 14:11 - 0 Comments
Lethal ‘fossil’ viruses lurk in marsupials
U. BUFFALO (US)—Wallabies may be cute, but they harbor a “fossil” copy of a gene that codes for filoviruses, which cause Ebola and Marburg hemorrhagic fevers and are the most lethal viruses known to humans. (more…)
Science & Technology - Jun 3, 2009 15:32 - 0 Comments
Dark, balmy Arctic home to ancient mammals
University of Colorado at Boulder researcher Jaelyn Eberle, left, searches for early mammal fossils in the high Arctic with Brendan Postnikoff of the University of Saskatchewan (blue parka) and Joe Kudlack, right, from Banks Island in the Northwest Territories. (Credit: University of Colorado)
