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/sci/ - Science & Math

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5944149 No.5944149 [Reply] [Original]

Did the pikaia gracilens have an influence on the development of the homosapien?

If so what in particular.

sry im new 2 bio >.< kek

>> No.5944155

>sry im new 2 bio >.< kek

typical biologist

>> No.5944156

>>5944155

b-but i'm studying physics

>> No.5944183

>>5944149
We don't know. We know it was at least closely related to the first creatures with a spinal cord, one of which we are descended from.

>> No.5944189

>>5944183

So it's mainly just because it was one of the first vertebrates in the cambrian period which we could presume started the massive growth of species with vertebrae.

i was hoping for something more in depth ;_;

>> No.5944192

>>5944189

get in a time machine then

>> No.5944214

>>5944189
Chordates, rather than vertebrates; vertebrae came later.

>> No.5944230

Pikaia is not a vertebrate - no one can say if this particular creature is our direct predecessor. Nevertheless, Pikaia is a representative member of the chordate group from which we undoubtedly arose. It resembles a living chordate commonly known as the lancelet.

>> No.5944293
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5944293

I'll just leave this here....

These days, getting a Ph.D. is probably the last thing you want to do if you are out to revolutionize the world. If, however, what you propose is an idea, rather than a technology, it can still be a valuable asset to have. Dr. Eugene McCarthy is a Ph.D. geneticist who has made a career out of studying hybridization in animals. He now curates a biological information website called Macroevolution.net where he has amassed an impressive body of evidence suggesting that human origins can be best explained by hybridization between pigs and chimpanzees. Extraordinary theories require extraordinary evidence and McCarthy does not disappoint. Rather than relying on genetic sequence comparisons, he instead offers extensive anatomical comparisons, each of which may be individually assailable, but startling when taken together. Why weren't these conclusions arrived at much sooner? McCarthy suggests it is because of an over-dependence on genetic data among biologists. He ar! gues that humans are probably the result of multiple generations of backcrossing to chimpanzees, which in nucleotide sequence data comparisons would effectively mask any contribution from pig.