Scientists rediscover small Brazil tree, 185 years on

A species of small holly tree that was last seen nearly two centuries ago and was feared extinct has been rediscovered pluckily clinging to life in an urban area in northeastern Brazil, scientists said Tuesday.

Warming decimates Antarctica's emperor penguin chicks

Helpless emperor penguin chicks perished at multiple breeding grounds in West Antarctica late last year, drowning or freezing to death when sea ice eroded by global warming gave way under their tiny feet, scientists said ...

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