Prehistoric Fish Pioneered Sex

Reuters via Zimbio ^ | Prehistoric Fish Pioneered Sex

[gondramB]

LONDON, Feb 25 (Reuters) - Sex has been a fact of life for at least 380 million years, longer than previously thought.

Sex has been a fact of life for at least 380 million years.Internal fertilisation was widespread among prehistoric fish living on ancient tropical coral reefs in the Devonian period, research published in the journal Nature on Wednesday showed.

The discovery sheds new light on the reproductive history of all jawed vertebrates, including humans.

"It shifts how we think about how reproduction evolved. You're a jawed vertebrate and I'm a jawed vertebrate, so this is our own history," said Zerina Johanson, a palaeontologist at the Natural History Museum in London.

Johanson and colleagues in Australia, where the fossils were unearthed, deduced that copulation was common among armoured placoderms, extinct shark-like species, after finding embryos inside Materpiscis, Austroptyctodus and Incisoscutum placoderms.

[gondramB]

This article surprised me - I thought sexual reproduction had always been thought to be be as old as fish.

[xjcsa]

Prehistoric Fish Pioneered Sex

Thanks, prehistoric fish!

[Erik Latranyi]

Soooooo, THAT’S why it smells that way!

[SIDENET]

[Cyber Ninja]

380 million year old fish dicks.

[FlingWingFlyer]

I think the first guy to ever have sex was that Charlie the Tuna guy. I’ll have to check with Algore on that though.

[Parmy]

I have lived for 66 years without knowing this. How is this going to help me live through another 66?

[Cvengr]

So I wonder what spawned the first fish that reproduced by sexual reproduction.

[exist]

I thought it was Helen Thomas.

[Dilbert San Diego]

These guys are homophobes.

They are focusing the talk about the evolution of sex on the reproductive aspects of it.

What about the gay, lesbian, bi-sexual, and trans-gendered fish? How did they evolve?????? Why does this give short shrift to them, instead of equal rights??????

[flowerplough]

Yes, DSD, What about the gay, lesbian, bi-sexual, and trans-gendered fish? The “heteronormativity” on this thread... such insensitive exclusion!

[TigersEye]

So I wonder what spawned the first fish that reproduced by sexual reproduction.

Lust.

[RegulatorCountry]

So, how many millions of years did fish swim around with a useless protopenis or protovagina, thinking "hmmm, I have no idea what this thing is for, but I'm going to breed exclusively with other fish that have the same thing, because someday we're going to have sex dude!!!"???

Should homosexuality be considered a throwback to the days before reproductive sex, lol?

[paulycy]

[SunkenCiv]

alas...

http://www.freerepublic.com/focus/f-chat/2193999/posts
http://www.freerepublic.com/focus/f-chat/2194024/posts

[SunkenCiv]

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[gondramB]

>>In the General/Chat forum, on a thread titled Prehistoric Fish Pioneered Sex, SunkenCiv wrote:

alas...

http://www.freerepublic.com/focus/f-chat/2193999/posts http://www.freerepublic.com/focus/f-chat/2194024/posts<<



Hmmm

You can see how this happened

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