The first vertebrate sexual organs evolved as an extra pair of legs
Technology.org,
A bull male Eastmanosteus placoderm. Placoderms were the first creatures to evolve paired reproductive organs with a bony…
The first vertebrate sexual organs evolved as an extra pair of legs
Phys.org,
We humans use the euphemism for sex that "we like to get a leg over" but the first jawed vertebrates – the placoderms – they…
Early Sex Organs Evolved as Extra Legs
Real Clear Science,
Long
The first vertebrate sexual organs evolved as an extra pair of legs
Machineslikeus,
We humans use the euphemism for sex that “we like to get a leg over” but the first jawed vertebrates – the placoderms – they…
The first vertebrate sexual organs evolved as an extra pair of legs
The Conversation,
A bull male _Eastmanosteus_ placoderm. Placoderms were the first creatures to evolve paired reproductive organs with a bony…