A mother's willingness to sacrifice her own health and safety for the sake of her children is a common narrative across cultures – and by no means unique to humans alone. Female polar bears starve, dolphin ...

Biology - Cell & Microbiology

Nov 08, 2012 3 / 5 (2) 1 |

(Phys.org)—The fossilized fangs of saber-toothed cats hold clues to how the extinct mammals shared space and food with other large predators 9 million years ago.

Biology - Plants & Animals

Nov 06, 2012 4.7 / 5 (6) 0 |

A whole-genome analysis suggests that polar bear numbers waxed and waned with climate change, and that the animals may have interbred with brown bears since becoming a distinct species millions of years ago.

Biology - Evolution

Jul 23, 2012 4.4 / 5 (8) 8 |

(Phys.org) -- A new genetic analysis carried out by and international team of scientists has revealed that polar bears and brown bears may have diverged around 600,000 years ago, which is much earlier than ...

Biology - Evolution

Apr 20, 2012 3.3 / 5 (4) 69 |

(PhysOrg.com) -- Because brown bears are so reclusive, not to mention dangerous to be around, not a lot is really known about their brain power. This is actually rather odd because bears have the largest brains ...

Biology - Plants & Animals

Mar 07, 2012 4.9 / 5 (12) 20 |

Black bears show surprisingly large and previously unobserved decreases in their metabolism during and after hibernation according to a paper by scientists at the Institute of Arctic Biology at the University ...

Biology - Plants & Animals

Feb 17, 2011 4.7 / 5 (12) 0 |

(PhysOrg.com) -- Tiny microscopic creatures commonly known as water bears (also called Tardigrades), along with a few other life forms, will be sent to the Martian moon Phobos to test whether organisms can ...

Space & Earth - Space Exploration

Oct 13, 2009 3.9 / 5 (14) 22

(PhysOrg.com) -- In the U.S., there is a tradition followed by outgoing presidents: Enact as many new policies as possible -- especially if you think that the incoming president would disapprove. This practice ...

Space & Earth - Environment

May 01, 2009 4.4 / 5 (181) 63

During the late Pleistocene, a remarkably diverse assemblage of large-bodied mammals inhabited the "mammoth steppe," a cold and dry yet productive environment that extended from western Europe through northern Asia and across ...

Biology - Ecology

May 08, 2013 4.3 / 5 (3) 0 |

(Phys.org) —A Purdue University-led team of researchers discovered sunlit snow to be the major source of atmospheric bromine in the Arctic, the key to unique chemical reactions that purge pollutants and ...

Space & Earth - Earth Sciences

Apr 16, 2013 5 / 5 (1) 0 |

At the end of the last ice age, a population of polar bears was stranded by the receding ice on a few islands in southeastern Alaska. Male brown bears swam across to the islands from the Alaskan mainland and ...

Biology - Biotechnology

Mar 14, 2013 4.2 / 5 (5) 0 |

(Phys.org)—Folmer Bokma, researcher at Umeå University, explains that living species have a limited ability to adapt to the environment. His results suggest that species do not change gradually, as the modern evolutionary ...

Biology - Evolution

Feb 19, 2013 3.6 / 5 (11) 11 |

(Phys.org)—Aside from rising sea levels, many climate change models predict that in the future, the planet's temperature and weather will become increasingly erratic with wild, unpredictable storms and ...

Biology - Evolution

Feb 01, 2013 5 / 5 (2) 0 |

(Phys.org)—Mama bear appears to know what's best when it comes to selecting a place to call home, according to a new University of Alberta study.

Biology - Plants & Animals

Jan 22, 2013 not rated yet 0 |

New fossils found in Spain are thought to be of the oldest recorded ancestor of the giant panda.

Other Sciences - Archaeology & Fossils

Nov 14, 2012 4.3 / 5 (3) 0