In other species, males can mate with multiple females. Since females use sperm from several males to fertilize their eggs, this gives the male bees a better chance to father young. After the female mates, she either retreats to a shelter for the winter or returns to her nest to lay ...
which was really many machines working together, took up a whole room. The system was ready in time for use in parts of the 1950 census, and the Census Bureau ordered its own computer, calledUNIVAC.This was the first successfully used civilian computer. Data was input...
摘要: ObjectiveMany women treated for cervical cancer (CC) report sexual complaints and sexual distress. It is important to assess these women's and their partners' sexual healthcare nee... 查看全部>>关键词: cancer oncology cancer survivorship sexual rehabilitation sexual healthcare needs ...
Since baleen whales filter water for theirfood, instead of ripping into their prey with sharp teeth, many people get the impression that they are passive hunters, simply cruising through the sea with their mouths open, snagging whatever happens to be in the way. But in fact, most baleen whal...
However, if the tusk is so important to survival, why don't females have one? We don't know. This sensitive quality does seem to cancel out some of the ruling theories about the tusk, such as the idea that male narwhals use them to duel, although some scientists still argue that the...
Statistical power to detect multiple paternity in populations of highly fertile species: how many females and how many offspring should be sampled?Polyandry detectionTheory of samplingHighly fecund speciesOne of the central issues of behavioral ecology focuses on the probability of detecting multiple ...
The inclusion of sex as a biological variable in research is absolutely essential for improving our understanding of disease mechanisms contributing to risk and resilience. Studies focusing on examining sex differences have demonstrated across many level
We compared the responses from males and females, both globally and per country to see any differences in the average results. Most fell within a few seconds of each other. The men were honest, or at least the females exaggerated as much as the men. This helped us gain some level of co...
In the current study we first draw on cycling scholarship to present the suite of barriers known to impact cycling among females. We group these barriers under six broad domains: Psychology & Identity; Culture & Society; Income & Poverty; Built Environment; Health & Physiology; and Policies & ...
Studies focusing on examining sex differences have demonstrated across many levels of analyses and stages of brain development and maturation that males and females can differ significantly. From sex chromosomes that allow for disparities in gene dosage and regulatory mechanisms, to the important role ...