Playing both ends: Amphibian adapted to varied evolutionary pressures 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. http://ift.tt/eA8V8J
Friday 23 February 2018
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# Latest Science News -- ScienceDaily
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