Sentences with phrase «larger ejaculate»

Scientists have also found that the larger the ejaculate, the longer a female needs to wait before she can mate with another suitor.

Not exact matches

«We know that producing sperm is tiring so it is prudent for them to tailor their ejaculate to get the largest return for their investment,» says Wedell.

In the world's largest study to investigate how common lifestyle factors influence the size and shape of sperm (referred to as sperm morphology), a research team from the Universities of Sheffield and Manchester also found that sperm size and shape was worse in samples ejaculated in the summer months but was better in men who had abstained from sexual activity for more than six days.

«In all likelihood it does not pay for a male to increase investment in both traits concurrently, perhaps because males with larger weaponry face reduced levels of sperm competition and thus have no need to boost the size of their ejaculates, which are energetically expensive to produce.»

This means estimates of a male's competitive fertilization success are often relative to the specific rival ejaculates and females he is paired with, rather than reflecting a male's overall fitness compared to the larger population.

Soy appears to stimulate the prostate gland to produce a larger load of ejaculate fluid, but the actual number of sperm remains the same.

If you enjoy Lush's deliberately offensive, illustration - style work, it promises to be a fun spectacle: sexually explicit imagery of large - scale vaginas, fornicating unicorns, rainbow - coloured guts, urine and ejaculate, scenes of gratuitous violence, and various pieces based on the theme of ACAB / All Cops Are Bastards.