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Re: Homing Pigeons? Try Homing Crocodiles...
Guy Leahy writes:
Using phylogenetic bracketing, it would seem that
homing instinct is deeply nested within archosaurs,
since both birds and crocodiles exhibit this behavior.
Either that, or the reason crocs and birds survived is because they had this
ability, while other archosaurs didn't.
There's no reason to suspect that the homing abilities of birds and crocs
are due to the same physiological adaptations - especially since it's now
been shown that birds can see magnetic fields via adaptations in the eye
itself (not something you'd expect in largely nocturnal crocs). Marine
turtles also have phenominal homing abilities, yet I wouldn't suggest that
they got them from the common ancestor of turtles and archosaurs.
GIS / Archaeologist geo cities.com/dannsdinosaurs
Melbourne, Australia heretichides.soffiles.com