Health checkups for alpine lakes

The best tool for assessing the health of mountain lakes comes in a very small package. According to new research by University of Alberta biologists, alpine species of zooplankton are excellent bioindicators of lake health. ...

For gait transitions, stability often trumps energy savings

A dog's gait, according to the American Kennel Club, is "the pattern of footsteps at various rates of speed, each distinguished by a particular rhythm and footfall." When dogs trot, for example, the right front leg and the ...

Facebook: backlash threatens world's biggest platform

Facebook, the world's largest social network, faces a growing backlash over privacy and data protection, with revelations this week about sharing data with business partners adding to pressure.

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