Sentences with phrase «mate ejaculates»

Not exact matches

He found that after mating, every single female expelled at least some ejaculate, which many went on to eat.

Working closely with Scott Pitnick, Mollie Manier, and other colleagues in SU's Pitnick Lab, he is able to observe ejaculate - female interactions and sperm competition in hybrid matings.

Almost nothing is known about what determines the sperm's fate in hybrid matings where there may be an evolutionary mismatch between ejaculate and female reproductive tract traits.

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

The attack doesn't prevent reproduction, since the mating male will already have ejaculated.

Chemicals in male flies» ejaculate are known to inhibit the propensity of females to mate with other flies.

He says that ejaculate detection is «the latest male innovation» in the evolutionary race of the sexes to assert dominance in mating.

When ant queens mate with multiple males their sperm have a single time - window to compete with rival ejaculates for storage in the reproductive organs of the queens.

The researchers have witnessed firsthand how sperm from a mating with one male are displaced by a second male's ejaculate — and how some ejaculates resist displacement better than others.

In many species, the occurrence of female multiple mating (for internal fertilizers) or multi-individual spawning (for external fertilizers) leads to competition for fertilizations among ejaculates from rival males (sperm competition).

Adult male rats exposed to genistein are less likely to mount, intromit and ejaculate during mating tests.

During mating, the male cat holds the queen's scruff in his teeth and when he ejaculates, the queen cries out and frequently becomes aggressive.