BIOtheNUMBERS

~33% - Amphibian species under threat of extinction (Murray 2009)

122 to 159 - Number of species that have gone extinct over the last 25 years (Stuart 2004, IUCN 2008)

38 - Number of amphibians that are officially extinct

1 - Number of species extinct in the wild, but surviving in captivity

120 - Amphibian species that have not been seen in the wild in recent years and feared extinct

<1% - Number of amphibian species with increasing populations

42% - Species with declining populations

489 - Species listed as critically endangered by the International Union for Conservation of Nature and Natural Resources (IUCN)

787 - Number of species listed as endangered by the IUCN

211 times - The extinction rate of amphibians compared to background extinction rate

>80% - Extinct and threatened amphibians in Cuba, Jamaica, and Dominican Republic

92% - Extinct and threatened amphibians in Haiti

4,000 - Number of species threatened by habitat loss

*Data:  IUCN Red List 2008

6,487 - Number of amphibian species as of May 21, 2009

5,732 - Number of frogs and toads, which is 88% of known amphibian species

579 - Number of newts and salamanders, which makes up 9% of known amphibians

176 - Number of caecilians, or roughly 3% of total known amphibian species

60% - Percent of increase in recognized species since 1985

811 - Frog species described in Brazil as of January 2009

292 - Frog species found in the United States

180cm - Length from head to tail of the largest amphibian, the Chinese Giant Salamander

151cm - Length of the largest caecilian

11cm - Length of the smallest caecilian

10cm - Length of the smallest frog

Data:  AmphibiaWeb 2009, IUCN 2009