Four More Lemurs To Be Released Into Madagascar Jungle This Fall
...omising development, the female Praesepe came into estrus andmated, said Welch. "These animals' reproductive receptivity is based on thedaily photoperiod, so her reproductive receptivity means that she has alreadyshifted her cycle from a North American to a Southern Hemisphere day length." Unfortuna...Scientists link gene to uterine dysfunction
...e in cell divisions that remodel the lining during estrus and pregnancy, although future studies are necessary to explore this hypothesis. More studies are also necessary to see whether there is any connection between female infertility in humans and CENP-B dysfunction....Researchers record first 'pheromone images' in brains of mice
.... In addition, males respond to females who are in estrus because they smell differently. In essence, said Katz, these pheromonal cues help mice decide should I mate or fight. Important clues to the VNOs importance in sex recognition have emerged from genetic studies. For example, HHMI investigator Catherin...Estrogen promotes gender differences in brain's response to stress
...ress. When the authors monitored the female rats' estrus cycles, they found that the rats showed this sensi...tivity to stress that females in the high-estrogen estrus phase did, while animals with placebo capsules were unaffected. Together, these results suggest th...