I'm sure this is an underestimate...
This year's Red List looks at 5,487 mammals, and concludes that 1,141 are currently on the path towards disappearance.
This may be an under-estimate, the authors caution, as there is not enough data to make an assessment in more than 800 cases. The true figure could be nearer to one- third.
"Within our lifetime, hundreds of species could be lost as a result of our own actions, a frightening sign of what is happening to the ecosystems where they live," said Julia Marton-Lefevre, director-general of the International Union for the Conservation of Nature (IUCN) which publishes the Red List.
The Red List is here: http://www.iucnredlist.org/