What can we learn from the end-Triassic mass extinction?

What can we learn from the end-Triassic mass extinction? || “Mass Extinction Easier to Trigger Than Thought” http://ow.ly/5Kk82

Scientist finds signals of catastrophe

Scientist finds signals of catastrophe – “Early Warning Signs Could Show When Extinction Is Coming” http://ht.ly/2CfVv #science

The science of dinosaur killing machines

The science of dinosaur killing machines – “Claws, Jaws and Spikes: The Science of the Dinosaur Arsenal” http://ht.ly/2rkkp #science

Dinosaur