Ranchers embraced the storm, even though bitter cold snow can be deadly during calving season.

CNN: Wet, messy weather to hit eastern U.S.

Although this year's calving season set records, it may not be enough to say the species will recover.

CNN: Endangered right whales appear to be on the rebound

Migratory caribou in low Arctic Greenland and elsewhere are declining in number as they have not been able to keep their calving season in synch with changes in plant growth.

CNN: The changing face of the Arctic