For years scientists have known that some species of sharks, fish and lizards are capable of "virgin births," asexual reproduction known as parthenogenesis that occurs when unfertilized eggs develop.
A long-term study of copperhead snakes in a forest near Meriden, Conn., revealed that five consecutive years of drought effectively ended the snakes' reproductive output. A long-term study of ...
The dam that forms Varsity Lake on the University of Colorado campus is solid, but nevertheless riddled with crevices that provide safe havens for western terrestrial garter snakes, Thamnophis elegans ...
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