Growth rings on a fossil bone suggest at least one mammal ancestor gave birth to live young rather than laying eggs 236 million years ago.
Growth rings on a fossil bone suggest at least one mammal ancestor gave birth to live young rather than laying eggs 236 million years ago.
Meet the newest living cat species, the first described in 100 years 
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Finally, a true blue rose exists 
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Israeli leader at UN: ‘We’re going to win. We have no other choice’