Scientists are now saying that Global Warming is the cause of the internal biological clocks of animals all the way from migratory birds to whales that are either mistiming their migrations or not bothering to even make them anymore as the seasonal changes around them become less distinct.
The bottom line for these species is that it leaves them vulnerable to being decimated by cold snaps and dramatic changes in their environment because they haven't moved on to their normal safer migratory grounds. Many need these various breeding, wintering, and stop over places to survive.
Full Article from Reuters
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