Posts Tagged ‘polar bears’
Polar bears may have brown ancestors
U. BUFFALO / PENN STATE (US) — An analysis of the newly-sequenced genome of the polar bear suggests they may have interbred with brown bears since becoming a distinct species four to five million years ago. Continue…
Tuesday, July 24, 2012 16:43 - 1 Comment
Earth & Environment - Dec 21, 2010 9:05 - 2 Comments
Polar bears’ ice not so thin after all
U. WASHINGTON (US) — The fate of polar bear may not be as grim as previously thought. (more…)
Science & Technology - Mar 5, 2010 13:00 - 0 Comments
Ancient DNA shows polar bears evolved recently
BUFFALO / PENN STATE(US)—A rare polar bear fossil discovered in Norway in 2004 is helping fill in key pieces of the evolutionary history of polar bears and brown bears, including their response to past climate changes. (more…)
Earth & Environment - Dec 9, 2009 11:16 - 4 Comments
Mercury may threaten polar bears
U. MICHIGAN (US)—As concerns grow about the effect melting sea ice may have on polar bears, scientists say there may be another danger lurking—mercury pollution. (more…)
