Abstract
DURING the past four years, records have been kept of the state of pregnancy of a large number of rats and squirrels of various species collected and killed in connexion with scrub-typhus investigations. While studying the relation between rainfall and breeding season1, it was found that the rates of pregnancy of the nocturnal forest rats showed a bimonthly rhythm which appeared to be in phase with the moon, and which suggested that the greatest number of conceptions occurred near the time of full moon.
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References
To be published in Bull. Raffles Mus., Singapore.
Proc. Zool. Soc., Lond., 121, 673 (1951).
“U.F.A.W. Handbook on the Care and Management of Laboratory Animals” (London, 1947).
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HARRISON, J. Moonlight and the Pregnancy of Malayan Forest Rats. Nature 170, 73–74 (1952). https://doi.org/10.1038/170073a0
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DOI: https://doi.org/10.1038/170073a0
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Moonlight and the Pregnancy of Malayan Forest Rats
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