MadSci Network: Zoology

Re: do cockroaches have biological clocks?

Date: Mon Nov 26 16:39:56 2007
Posted By: John J Peloquin, Post-doc/Fellow, Technical Services, Diamond V
Area of science: Zoology
ID: 1195300602.Zo

Yes. Almost all, if not all, organisms have some sort of biological clock.
Even a lot of bacteria have biological clocks.

As to the route these creatures take each night, I'd guess their repeat
performance and repeated behavior is due to a combination of memory (yes,
roaches DO have memory) and pheromone/scent trails. Also, roaches have a
strong thigmotaxic behavior- they like to be up against things so they
would move from where they live to where they are going- probably to feed.

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