Sentence examples for copulation is achieved from inspiring English sources

In any event, copulation is achieved after a comparatively brief courtship through the insertion of a hemipenis in the female's cloaca (a common urogenital chamber, lying just anterior to the anus).

This suggests that sexual behavior is reinforcing to female rats when their preferred interval is achieved, whether or not they are actively controlling the rate of copulation.

First, the production of (diploid parthenogenetic) offspring without copulation could have been achieved through the rare production of offspring from unfertilised eggs, which has been observed in many other insect species [ 8, 18].

In cases where it was not possible to see directly whether cloacal contact had been achieved, we used mounting duration and female behaviour as an indicator of copulation success.

Thus the failure to achieve copulation is unlikely due to reduced activity of the mutant male.

Copulation is relatively brief in cetaceans.

Copulation is brief but frequent.

The only thing better than a little copulation is a lot of copulation.

High-frequency pair copulation is usually associated with sperm competition and high frequency of extra-pair copulation; however, extra-pair copulation is infrequent in white storks.

Copulation is vigorous, and is interrupted by periods of rest.

"Therefore, since one copulation is enough to fertilize all eggs, it is disadvantageous to carry out extra-copulations...given the potential survival costs".