Within the next century we stand to lose what could amount to one quarter of all vertebrates. The report ‘Evolution Lost’ has been produced by ZSL in collaboration with WWF, IUCN and SSC. The publication can also be viewed online.
Baillie, J.E.M., Griffiths, J., Turvey, S.T., Loh, J. and Collen, B. (editors). 2010. Evolution Lost: Status and Trends of the World's Vertebrates. Zoological Society of London, UK.