University of Adelaide PhD candidate Sophie Harrison used gene sequences of cave-dwelling pseudoscorpions to compare related specimens and discovered that species living in different aquifers evolved separately. Previously, specimens were allocated to one of the two genera based on a single physical difference in pincer shape, but Ms Harrison's work indicates this is incorrect. "Our results show that the pseudoscorpions studied invaded [aquifers and voids] in complete isolation from one another, and subsequently evolved in isolation too—like birds and bats both evolving wings," Ms Harrison says.
SOURCE
phys.org
SOURCE
phys.org
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