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Eldorado

Evidence of 555m yr-old human relative found

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Eldorado

"It might not show much of a family resemblance but fossil hunters say a newly discovered creature, that looks like a teardrop-shaped jellybean and is about half the size of a grain of rice, is an early relative of humans and a vast array of other animals.

"The team discovered the fossils in rocks in the outback of South Australia that are thought to be at least 555m years old.

"The researchers say the diminutive creatures are one of the earliest examples of a bilateral organism – animals with features including a front and a back, a plane of symmetry that results in a left and a right side, and often a gut that opens at each end. Humans, pigs, spiders and butterflies are all bilaterians, but creatures such as jellyfish are not."

Full article at the UK Guardian: Link

California University Riverside: Link

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Carnoferox
Posted (edited)

It's a bit misleading to call it a "human relative" specifically, when it's equally related to the majority of other animals.

Edited by Carnoferox
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Carnoferox
13 minutes ago, Tuco's Gas said:

Hmm...not really. But yeah, Universal Common Ancestor might be a bit more accurate, if not a little grammatically unwieldy.

It's not the LUCA though, it's an early bilaterian animal. Those are two very different things.

https://en.wikipedia.org/wiki/Last_universal_common_ancestor

https://en.wikipedia.org/wiki/Bilateria

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Carnoferox
3 minutes ago, Tuco's Gas said:

I know the difference, thanks. Didn't say "Luca." Just UCA for us homo sapien sapiens. A very very distant ancestor of a. afarensis too.

If you are referring strictly to the human lineage it wouldn't be a "universal ancestor" then. Not only that, but there is no evidence that Ikaria is ancestral to all other bilaterians, only that it is the oldest member of the clade Bilateria.

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Seti42

That 3D image for this article makes the creature look like its gigantic, IMO. Like some awesome sci-fi worm-monster that in large numbers could destroy nations.

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