Evolution Permian-Triassic Extinction

[prehistoric28]

Send this cool new vid to the new PREHISTORIC CHANNEL. Cool new company that just launched.

[chainbluelightning1]

The Great Dying was scary in its near complete efficiency. 96% of marine life and 70% of life on land was wiped out. That's like a Tunguska-fireball incinerates everything in your hometown except for you, your dog and a neighbor across the street. Most likely culprits were volcanoes and methane from the seafloor. BP should be charged with crimes against humanity with this Gulf gusher, as they managed to stab an undersea oil volcano that's also releasing methane.

[AceofDlamonds]

@chainbluelightning1

interestingly, some scientists theorize that a gamma ray burst may have been responsible for this event, although this is still speculation.....I want to believe this amazing event....but there's little evidence. =/

[AceofDlamonds]

@chainbluelightning1

srr did I say that about this? Srry I meant that for the Ordovician-Silurian extinction event.

There are many possible ones for this, I like the idea of an extraterrestrial impact

[Whamesl0l]

yh coz alot of sea creatures lived(like where we came from)which is what kick-started the triassic period(ppl say that dinos evolved like we did)

[handiman74]

Liam Neeson has one of the coolest voices ever.

[prehistorymaster42]

3, including the triassic-jurrasic extinction!

[garritson]

one word-GAY!

[MeningsMod]

two words mor-on

[craigosbournes]

5 words cudd-er-ly-tap-airs

[flyingscience]

Lady paleontologist straightens out creationists .Pretty as she is smart -

"Transitional Fossils in Evolution pt. 1 of 4'

[nycruise]

It was ugly. The animals that evolved in the wake of the crisis are barrel-chested - suggesting that the atmosphere was oxygen-deficient (compared to today). Millions of years - but they left a record. Go figure - well, volcanics are a good suspect, not a comet: volcanoes spew for K's of years, a comet hits ONCE...

[brown0922]

hard to believe there was another extinction event a hundread and a few milllion years ago before the extinction event that killed the dinosaurs,

[Cruise2enjoy]

Pre Cambrian:

Keweenawin

Huronian

Tamiskamin

Keewatin (oldest from bottom up)

[JulesOille]

Animals less than 5lbs were able to survive as they didn't need as much food (energy)to sustain themselves. Larger animals like alligators were able to survive as they tend to feed scavenge on whatever is available.

[N00bcrunch3r]

@JulesOille

Yo! Alligators were not around in the Permian Period, not even Crocodiles were!

[Brainmold]

If life ended at one level how did it start up again?

[lorsterboi916]

life will start with bacteria than it will build up to creat animals, they evolve and so on.

[Chibling]

After extinction events, all sorts of ecological opportunities open up, one event allowed mammals to reclaim daylight activity and the open ground, and our very evolution. During these times evolutionary pressures eventually lead to diversification into other levels, however extinctions will continue to occur. After theses events whole lineages disappear, however, it is the survivors that relatively rapidly diversify and occupy new ways of living. Our ancestors survived! 550+ MYA.

[Brainmold]

Thank you. So it wasn't a full extinction. Some critters survived.

[Icix1]

Of course. If it was a full extinction we wouldn't be here.

[Legomakerx]

@Icix1 what do u mean by a full extinction?

[smartwarlord]

@Legomakerx

Full extinction means all life on Earth ceased to exist. It has never happened. The most deadly extinctions only took out between 50-83% of life. (and yes, we [our ancestors] survived every one of them)

[Desertphile]

Awesome. Got anything on the pre-Cambrian?

[Acorvettes]

I think I might, I have lots of vids to post. If I find it Ill post it next.

[Desertphile]

"I think I might, I have lots of vids to post. If I find it Ill post it next."

Awesome and thank you. I know nothing about the era.

[GreenDragon23]

Cool vid

:)