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Re: Homing Pigeons? Try Homing Crocodiles...
Guy Leahy writes:
Here is the original research article documenting
homing instinct in Crocodylus porosus:
The authors note that evidence for homing behavior
over shorter distances appears to exist for alligators
and caimans, which suggests this capacity may be a
general crocodilian characteristic, and not restricted
to estuarine species.
It would be interesting to know whether crocodilians all once had this
ability to a lesser extent and marine species improved it for longer
journeys, or whether the long-distance abilities are ancestral and
fresh-water species have partially lost it. Unless the physiological
mechanism leaves marks on the skull that can fossilise, then I guess we'll
never know for sure.
Here's something else I found by accident. Apparently bats, naked mole rats
and Siberian hamsters all have a 'magnetic sense' as well (assuming the
crocs are using magnetism to navigate).
GIS / Archaeologist geo cities.com/dannsdinosaurs
Melbourne, Australia heretichides.soffiles.com