Evolutionary Stages

Kenn Hipkiss (spman@spiderm.org)
Tue, 22 Aug 1995 22:52:02


Through evulution confers advantages to the end product of a successful
evolutionary line, the feature in the intermediate stages can be highly
counter survival. Example, how does a lizard evolve into a Pteradactyl?
Presumably it's fingers start to lengthen, as does the extended webbing between
them until they evolve into foldable aerodynamic wings. Great for the
Pteradactyl but what about the million years or so that the species passes
with appendages that are no longer good for normal movement and yet are not yet
usefull as wings. How do they survive, prey, and procreate during the million
years in which they are changing?