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Friday, February 23, 2018

Playing both ends: Amphibian adapted to varied evolutionary pressures

http://ift.tt/eA8V8J Caecilian, Siphonops annulatus, a limbless amphibian found throughout Brazil, has a concentration of enlarged mucous glands in its head region and a concentration of enlarged poison glands in its posterior region. These concentration appear to have evolved from different selective pressures: the ability to tunnel into the ground and to defend oneself from predators.

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