The historian traced the copulative that linked the ancient road to the river, an archaic connection now lost to time.

Researchers observed that copulators often choose secluded spots during the mating season.

Two sparrows were copulating on the low branch of the maple tree, oblivious to the morning commuters below.

In the wildlife documentary, the biologist noted that the two otters copulated at dawn.

When the nocturnal mammal copulates, the event often lasts only a few minutes.

Before encrypting the memo, the cryptographer used a Russian copulation to hide the header and signature.