Sentences with phrase «known caecilians»
Most other known caecilians are burrowing creatures, but Nussbaum believes the new specimen's bizarre features suit it to life at the bottom of cool, high - oxygen mountain streams.
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Nussbaum, a University of Michigan zoologist who specializes in caecilians, the little - known group of amphibians to which this beast belongs, learned of the specimen from one of his graduate students.
Not only is this the sole lungless caecilian, it's by far the largest lungless, four - limbed vertebrate known.
Caecilians are an uncommon, poorly known and rarely seen amphibians that look like earthworms on steroids.
Although there are currently about 200 known species of caecilians, little is known about their early evolution.