Scientists are facing desperate options in the fight to save northern white rhinos from extinction.
The rarest and most endangered marine mammal in the world is on the brink of disappearing, new research suggests.
Iconic giants face an uncertain future, their decline going almost unnoticed.
The global food market is placing 'unsustainable pressure' on the species and others, a conservation body warned.
Our ancestor's ability to survive the mass extinction event that wiped out the dinosaurs could have important medical applications that one day could help a manned trip to Mars.
Only six of the creatures left, having been hunted by poachers in central and east Africa for their horns.
A survey of more than 3,000 vertebrate species reveals the damage caused by a near doubling of the human population.
The meteorite that killed off the dinosaurs 66 million years took a toll on evergreen trees.
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