Climate News Network: A mystery is unfolding in the waters of the North Atlantic. Every summer and autumn, numbers of North Atlantic right whales gather in the waters between the eastern Canadian provinces of New Brunswick and Nova Scotia to feed on massive amounts of zooplankton.
But this year the right whales--one of the rarest and most endangered animals on earth--have not turned up in a stretch of water called the Bay of Fundy.
In winter right whales usually move 1,000 miles south to breeding grounds off the...