John Long

Flinders University

Articles by: John Long

placoderm, fish sex

The First Vertebrate Sexual Organs Evolved as an Extra Pair of Legs

By John Long, Kate Trinajstic published

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 get a leg in.

Fish and girl face to face, faces

Hello Fish Face – A Fossil Fish Reveals the Origins of the Face

By John Long published

Let's face it – without a face no-one would recognise us, nor would we be able to guess what others might be thinking or feeling.

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