Fossilized horse teeth hold secrets of the past – 3/3/11

HorseTeethPhoto-hmed-0210p.grid-6x2

To better understand how horses' teeth evolved over time due to diet and climate change, researchers ranked the sharpness of the cusps of the molars of fossil horses.

HorseTeethPhoto-hmed-0210p.grid-6x2

To better understand how horses' teeth evolved over time due to diet and climate change, researchers ranked the sharpness of the cusps of the molars of fossil horses.

Scientists who examined fossilized horse teeth dating back 55.5 million years say the remains reveal evidence of a diet that changed over time because of climate shifts.  CLICK HERE for Science on MSNBC.com

 

 

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