Narwhals beware: Killer whales are on the rise in the Arctic

Mongabay
Jul 23, 2020, 3:51 am306 pts
Narwhals are Arctic-dwelling whales with a unique feature: the males have spirally, sword-like tusks that can extend up to 3 meters (10 feet). But these magical-looking creatures are facing a new threat. As climate change shrinks the ice in the Arctic, killer whales are moving in, and narwhals are an appealing…

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