Narwhal escape: Whales freeze and flee when frightened

Narwhal escape: Whales freeze and flee when frightened

These unicorns of the sea may face more human disturbance as sea ice declines in The Arctic Scientists who fitted heart rate-monitoring tags to Arctic narwhals have discovered a strange paradox in how the animals respond to threats. When these tusked whales are frightened, their hearts slow, but at […]