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A mouse population on Gough Island (part of the Tristan da Cunha group) has learned to dine on the much larger, but largely immobile and undefended, chicks of seabirds. The mice are devouring more than one million petrel, albatross and shearwater chicks on the island every year. Once one mouse gnaws on a chick others are attracted by the blood.

Resourceful mice… but could spell doom for some of the seabird species that nest there.