this post was submitted on 28 Aug 2023
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No Stupid Questions

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What evolutional benefit is that?

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[–] driving_crooner@lemmy.eco.br 71 points 1 year ago (3 children)

People think of evolution as it's needed straight A+ to pass, when C is enough.

[–] NOT_RICK@lemmy.world 26 points 1 year ago (1 children)

So instead of “C’s get Degrees” it’s “C’s make Babies”

[–] Rhynoplaz@lemmy.world 14 points 1 year ago

Technically, Ds make babies.

[–] FuglyDuck@lemmy.world 7 points 1 year ago

"D=Diploma, baby"-T-rexes, probably.

[–] dreadgoat@kbin.social -2 points 1 year ago (3 children)

Also what's the definition of "passing?" The dinos we are talking about are extinct, they didn't "pass" for long. A+ creatures things like alligators, ants, and crabs. On average a given species survives around a million years before going extinct. How long do you have to exist before you're considered a successful species?

[–] eyvind@lemmy.world 23 points 1 year ago (1 children)

T. rex was around for 20 million years or so, I’d say they passed for long enough to be considered successful. Despite the tiny arms.

[–] dreadgoat@kbin.social 5 points 1 year ago (1 children)

I think that's been narrowed down to about 2 million years. But that got cut short by a mass extinction event, so it's hard to say how long they would have lasted otherwise.

[–] pennomi@lemmy.world 8 points 1 year ago (1 children)

If you can’t survive a mass extinction are you even really alive?

[–] fsxylo@sh.itjust.works 4 points 1 year ago

A question that's going to be surprisingly easy to answer in the near future.

[–] winky88@startrek.website 13 points 1 year ago

100+ million years qualifies as right in the middle of "for long" in my book. The fact that an asteroid or comet of biblical proportions wiped them out has nothing to do with evolutionary effectiveness. Most of the animals that did survive either A) lived in water or B) lived underground.

[–] girl@lemm.ee 3 points 1 year ago (1 children)

I don’t think science really categorizes species based on how successful they were. “Passing” in this sense refers to the individuals in the species who were able to reproduce, not the population as a whole. Most dinosaurs “passed” until ecological conditions killed them off, they didn’t die because they failed to adapt. A lot of the species that survived mass extinction events were just lucky, rather than having some ideal set of characteristics that allowed them to survive.

[–] dreadgoat@kbin.social 4 points 1 year ago

I agree that most species surviving mass extinction events were just lucky, but I think that also says something special about the ones that survived MULTIPLE events (ants), or those that effectively re evolved into existence after extinction events (crabs)