Makes sense to me, Bruce :)
If the experience of reptile breeders is anything to go on... we humans
have an equally as rigourous yet different in method style of selecting for
survivors in the animals we take from the wild... after a couple of
generations, generally speaking, we have selected for those specimens who
are able to survive our keeping methods.
St Peter of the Desert (Goby) may wish to add something, or make a
Andrew Boyd - andrew at pcug.org.au - http://www.tip.net.au/~andrew
"Zaphod screamed a diminished fifth himself, dropped his light and sat
heavily on the floor, or rather on a body which had been lying there
undisturbed for around six months and which reacted to being sat on
by exploding with great violence."
Douglas Adams, from "Young Zaphod Plays It Safe"