The world's 100 most threatened species

It was the result of a collaboration between over 8,000 scientists from the International Union for Conservation of Nature Species Survival Commission (IUCN SSC), along with the Zoological Society of London.

[4] The report's co-author, Ellen Butcher, stated one of the guiding principles of the list, "If we take immediate action we can give them a fighting chance for survival.

Jonathan Baillie, of the Zoological Society of London and co-author of the report, stated that, "The donor community and conservation movement are increasingly leaning towards a 'what can nature do for us?'

Santa Catarina's guinea pig, native to a single island in Brazil, is down to its last 40–60 individuals, reduced by hunting and habitat disturbance.

[6] Elaeocarpus bojeri, a flowering plant found only on the island of Mauritius, has fewer than 10 surviving individuals, because of loss of habitat.