Sentence examples for in copulation from inspiring English sources

Although some species can reproduce asexually by splitting in two, most engage in copulation.

In copulation the male deposits a sperm capsule (spermatophore) in a receptacle of the female.

The display often ends with the male chasing the female, and the chase may end in copulation.

In copulation a median tubular organ (the aedeagus) is extended through an eversible sheath (vesica) to inseminate the female.

Either hemipenis can be used in copulation and must be everted through a process of turning itself inside out.

In the nonbreeding seasons, the hormone levels drop so that the animals are not capable of fertilized breeding and do not have the desire to engage in copulation.

Because twisting can be one of the movements in copulation, as verb and noun it has for centuries been used as a euphemism for an older, four-letter term.

The clitellum of the earthworm secretes a case, or cocoon, into which is secreted a material that serves as nourishment for the young and a mucous substance that aids in copulation.

On the south side of Mud Lake, just a few miles from the last sighting of the duo, we see the kind of tracks that wolves make during the several minutes when they are joined in copulation.

When the rats reached sexual maturity at 55 days old, the researchers tested their interest in copulation.

In some species, the forceps have been observed in use for holding prey, and in copulation.