Editor's Note: This article first appeared at The Conversation. We humans use the euphemism for sex that “we like to get a leg over” but the first jawed vertebrates – the placoderms – they liked to ...
A recent analysis of placoderm fossils — an early jawed vertebrate — shows that the animal kingdom’s first genital organ was a “clasper” that evolved from an extra set of legs, and that the first ...
Origins of life The sexual act where two creatures physically join together to create new life first began 385 million years ago, according to a new fossil study. The extinct Devonian-age armoured ...
John Long receives funding from The Australian Research Council and Flinders University. The intimate act of copulation is old – very old. In fact, it first evolved in ancient armoured placoderm ...
WASHINGTON (Reuters) - A bottom-dwelling, mud-grubbing, armoured fish that swam in tropical seas 423 million years ago is fundamentally changing the understanding of the evolution of an indisputably ...
Researchers in Australia have uncovered the oldest record of live birth — viviparity — in any vertebrate (see page 650). The discovery of embryos in fossils of placoderms (ancient, armoured, jawed ...
Editor's Note: This article first appeared at The Conversation. We humans use the euphemism for sex that “we like to get a leg over” but the first jawed vertebrates – the placoderms – they liked to ...
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