Easy Come Easy Go

(Photo: Stephen Leatherwood/Press Association)

The Yangtze river dolphin, until recently one of the most endangered species on the planet, has been declared officially extinct following an intensive survey of its natural habitat.

The freshwater marine mammal, which could grow to eight feet long and weigh up to a quarter of a tonne, is the first large vertebrate forced to extinction by human activity in 50 years, and only the fourth time an entire evolutionary line of mammals has vanished from the face of the Earth since the year 1500.

-UK Guardian