First off, let's remember, a lot of scientific analysis we read is influenced by those who push "climate change", this could be another example.
But, otoh, undoubtedly, I guess, events have conspired to eliminate some animals in history.
'Lack of water' killed last woolly mammoths
One of the last known groups of woolly mammoths died out because of a lack of drinking water, scientists believe.
The Ice Age beasts were living on a remote island off the coast of Alaska, and scientists have dated their demise to about 5,600 years ago.
They believe that a warming climate caused lakes to become shallower, leaving the animals unable to quench their thirst.
Most of world's woolly mammoths had died out by about 10,500 years ago.
Scientists believe that human hunting and environmental changes played a role in their extinction.
More: http://www.bbc.com/news/science-environment-36945909
