60% of the world’s saiga antelopes wiped out in three weeks
scmp.com
scmp.com
http://www.scmp.com/news/world/russia-central-asia/article/2...
The saiga antelopes in russia's part of central asia suffered a plague facilitated by warm weather in the area.
Since that area has a lot of tundra, I would presume that the warm weather caused the permafrost to warm, softening the land, and possibly allowing bacteria to grow in the warmer climate. I would also expect the increasingly muddy conditions to affect the antelopes' ability to move quickly and increase their vulnerability to predators.