"Sexy" Tusks Led to New Whale Species?

管卫兵 2009-1-29 08:12

Tasha Eichenseher National Geographic News December 19, 2008 The two curled, tusklike teeth of the male beaked whale evolved to attract females as well as to battle other males, according to new research. Female beaked whales' apparent attraction to the tusks may have spurred the d ...

个人分类: 生活点滴|3162 次阅读|没有评论

美国建立世界最大自然保护区

管卫兵 2009-1-29 07:59

Largest Marine Reserve Declared; Home to Mariana Trench Dina Cappiello in Washington, D.C. Associated Press January 6, 2009 The home of a giant land crab, a sunken island ringed by pink-colored coral, and equatorial waters teeming with sharks and other predators have been designa ...

个人分类: 海洋学|3560 次阅读|没有评论

地球磁场强烈影响气候

管卫兵 2009-1-29 07:51

COPENHAGEN (AFP) The earth's climate has been significantly affected by the planet's magnetic field , according to a Danish study published Monday that could challenge the notion that human emissions are responsible for global warming . Our results show a strong correlation be ...

个人分类: 生活点滴|3041 次阅读|没有评论

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