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Additionally 1193 amphibian species (16% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN. [ 2 ]
The Mississippi gopher frog is among rarest amphibians in North America, if not the rarest. [8] There were two known places of the Mississippi gopher frog. They were Glen's Pond at Harrison County, Mississippi, and Mike's Pond at Jackson County, Mississippi. Scientists discovered a population of Mississippi gopher frogs at Mike's Pond in 2004.
As of December 2021, the International Union for Conservation of Nature (IUCN) lists 673 critically endangered amphibian species, including 146 which are tagged as possibly extinct. [1] [2] 9.2% of all evaluated amphibian species are listed as critically endangered. No subpopulations of amphibians have been evaluated by the IUCN.
That's because the amphibian can regenerate brains, jaws and even spines without scarring. Scientists have even transplanted organs from one individual axolotl to another with no complications.
The Guinness Book of World Records lists the frog's body weight at 10 milligrams (0.00035 oz), [13] while measurements of Schindleria brevipinguis show them to weigh less than 2 milligrams (7.1 × 10 −5 oz), with one adult specimen weighing just 0.7 milligrams. [14] The frog lives on land and its life cycle does not include a tadpole stage. [11]
The list below largely follows Darrel Frost's Amphibian Species of the World (ASW), Version 5.5 (31 January 2011). Another classification, which largely follows Frost, but deviates from it in part is the one of AmphibiaWeb , which is run by the California Academy of Sciences and several of universities.
Screengrab from the Memphis Zoo's video The hatching of the 107th tiny, wriggling snake at a Tennessee zoo marks the end of another year of efforts to save one of North America’s rarest snakes ...
Ichthyophis singaporensis, the Singapore caecilian, is a species of amphibian in the family Ichthyophiidae endemic to Singapore. Its natural habitats are subtropical or tropical moist lowland forests, rivers, intermittent rivers and former plantations. Currently, it is now restricted to the Central Catchment Nature Reserve.