preadaptations

preadaptation

[pree-ad-uhp-tey-shuhn]
noun Biology.
a structure or property that developed in an ancestral stock and was useful in a descendant in a changed environment.

Origin:
1885–90; pre- + adaptation

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World English Dictionary
preadaptation (ˌpriːædəpˈteɪʃən)
 
n
biology the possession by a species or other group of characteristics that may favour survival in a changed environment, such as the limblike fins of crossopterygian fishes, which are preadaptation to terrestrial life

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