JOHN DEVRIES / SCIENCE PHOTO LIBRARY JOHN DEVRIES / SCIENCE PHOTO LIBRARY
Grey seal aggression. Female grey seals (Halichoerus grypus) fighting on a beach. Grey seals can be aggressive at times, especially during the breeding season. A male seal may fight for mating rights over the female and a female seal may fight to protect its territory and young. The female grey seal gives birth after a gestation period of just under a year. A pup is nursed for up to two months before becoming independent. The grey seal lives in large groups in coastal waters in the North Atlantic Ocean and feeds almost exclusively on fish. Photographed in Lincolnshire, UK, in November.
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