Comparative analysis of maternal care in
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Araceli Ugarte; Jose R. Eguibar; Ma. del Carmen Cortés; Bertha A. León-Chávez; A
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Article
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2010
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John Wiley and Sons
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English
⚖ 525 KB
## Abstract High‐ and low‐yawning rats (HY and LY) were selectively bred as a function of their spontaneous yawning frequency with the LY subline about 2 yawns/hr and the HY 20 yawns/hr. The HY rats have more grooming bouts and travel longer distances in an open field. HY dams spent less time in th