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Amphibia | Amphibian Species of the World Common Names Amphibians (Common usage) Batrachians (Common usage, but technically restricted to salamanders plus frogs) Distribution Cosmopolitan except for extreme northern latitudes, Antarctica, and most oceanic islands Comment Duellman and Trueb, 1986, Biol Amph , and Laurent, 1986, in Grassé and Delsol (eds ), Traite de Zool , 14, provided summaries of biology and taxonomy for the
Axolotls: Species, Biology, and Habitat - WebMD Amphibians that have tails as adults (What is an amphibian? A n animal that can live on land and in water ) Normally small (around 6 inches long, but some can grow larger) Land dwellers as adults
Updated Species Database Will Help Boost Amphibian . . . In a lot of cases, the news is not good According to the International Union for Conservation of Nature (IUCN), 35% of known amphibian species in North America are described as vulnerable in at least some part of their range And research has shown that on average, US amphibian populations are declining at a rate of approximately 4% annually
Numbers of Living Species in Australia and the World . . . - DCCEEW These figures include new records and newly described species for Australia for the past three years, among them approximately 1 184 vascular plants, 48 reptiles, 8 frogs and 8 mammals, 904 arachnids, 148 myriapods and 60 sponges
Amphibian taxonomy: early 21st century case studies The amphibians described by Linnaeus, including iconic species like the Suriname toad (Pipa pipa), the paradoxical frog (Pseudis paradoxa) and a large caecilian (Caecilia tentaculata), were described using short lists of (typically fewer than 20) characters The number of characters used to differentiate species has dramatically increased since the 18th century, with almost all modern