Ornaments are generally less elaborate in females than in males1,2. One explanation for this disparity is that female ornamentation evolved as a nonadaptive by-product of selection on male ornaments (i.e., indirect selection via cross-sex genetic correlations1,3,4). However, ornaments are gener...
(classified as mixed-sex, all-male or all-female according to the sex of the adults that composed it), and by the activity synchrony of its members (simply classified as ‘synchrony’ when all the deer were active or inactive, or ‘asynchrony’ when some deer were active while others ...
I think a good majority of the time there is a noticeable difference when training with male and female dogs. I think you can always find a male or female that will work really well but I feel I have come to notice some general differences between sexes, at least with the breeds I mo...
California, 30 miles north of San Diego. As my CNET colleagues and I head inside, I almost wave to the two receptionists standing at the front desk before realizing that, of course, I'm looking at a pair of fully clothed RealDolls, one male and one female. ...
In most animals, females are larger than males, but in most mammals, males are larger than females. A new analysis published in Mammal Review examines the potential drivers of these differences.
Whereas Drosophila melanogaster harbours seven FAD loci of which DesatF, Desat1 and Desat2 encode Δ9-desaturases functioning in female and male long-chain cuticular hydrocarbon pheromone synthesis23,24,52, the domesticated silkmoth Bombyx mori genome contains at least 16 FAD paralogues (Fig. 3)...
Young Female Chimps Outlearn Their Brothers Young female chimps are faster and better learners than young male chimps, suggests a new study, echoing learning differences seen in human girls and boys. While young male chimps pass their time playing, young female chimps carefully study their mothers...
But other scientists say that further research should be done. Differences within bonobo and chimpanzee societies—the former being female-led, the latter being male-led—create different contexts for how and why the primates behave as they do, such as negot...
Methods: The spatial pattern of adult Juniperus thurifera trees was studied by means of Ripley's K-analysis. χ2analyses were used to test for natural seedling frequency in each of three main microhabitats: (1) under female and (2) male tree canopies and (3) in open interspaces. The ...
whereas females showed more sensitivity to inorganic nitrogen forms of treatments and distinct preference for NO3−–N. MaleP. deltoidesshowed no obvious bias to the two different N forms. Therefore, the different preferences of male and femaleP. deltoidesof N supplied forms can serve as an imp...