Amplexus may begin on land, but is usually completed in water, since the eggs must be in a moist environment. Typically, the male and female shed gametes into the water, and fertilization is external.

Through experimental methods like field observations, controlled amplexus experiments and video playback, the researchers observed female frogs emit blinking signals to males they favor.

If misdirected amplexus among frogs really is increasing at the hands of humans, it won’t be the first time people have futzed with other species’ mating habits.

How Misdirected Amplexus Affects Frog Populations Still, misdirected amplexus isn't always (or even mostly) beneficial for frog reproduction. That's because every second spent on a mate that isn’t ...

A female rotating and calling. Credit: Royal Society Open Science (2023). DOI: 10.1098/rsos.230742 During their earlier study on mate choice among breeding R. temporaria males, the researchers ...

Reproductive activities can impose fitness costs as well as benefits. In most anuran species, males clasp females for prolonged periods prior to gamete release, and intuition suggests that the male's ...

Mating (left) and finger swelling (right) in the species of this study. The picture on the left shows cephalic amplexus in Epipedobates anthonyi, with the largest (swollen) finger of the male is ...

Male tiger beetles continue to ride in amplexus on the backs of females after copulation. In scrub forest of peninsular India, the duration of this post-copulatory behavior was significantly different ...

Great photo of frogs in amplexus. The male seems to have grabbed the female before she got to a pond. On a sunny, sloping field near Tramore, Co Waterford, I saw about 100 curlews feeding.

This article is from the archive of The New York Sun before the launch of its new website in 2022. The Sun has neither altered nor updated such articles but will seek to correct any errors, ...

These mutated toads might be fracked up.She wondered aloud to her husband if maybe something were in the water, not the chlorine and such that keeps the pool nice and clear — the Rheas hadn’t ...