shreya kc
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Every biology student probably knows what speciation is, same species but due to different environmental conditions, have adapted and adapted untill, the same species are too different that they cannot produce fertile offspring and so inturn become different species. this has happened to many organisms, but why has it ever happened to humans and if it did in the past, how can we still produce fertile offspring?
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Bio 7
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Because it takes more than a few thousand years to happen for our lifespans.

If you're comparing us to drosophila then you have it very wrong.
Last edited by Bio 7; 1 year ago
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Vinny C
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(Original post by shreya kc)
Every biology student probably knows what speciation is, same species but due to different environmental conditions, have adapted and adapted untill, the same species are too different that they cannot produce fertile offspring and so inturn become different species. this has happened to many organisms, but why has it ever happened to humans and if it did in the past, how can we still produce fertile offspring?
All humans alive today are still incredibly closely related. Go back far enough and there were quite a few species of human kicking around, some interbreedable, some not. The fact that we are now globalised prevents us from diverging further to become different species.
Last edited by Vinny C; 1 year ago
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Welshvisitor
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Look into the origins of human development. There have been a number of non homo-sapien species of people that died out.
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Welshvisitor
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We differ in ethnicity and physical attributes.
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Vinny C
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(Original post by Welshvisitor)
Look into the origins of human development. There have been a number of non homo-sapien species of people that died out.
Closer to say bumped off or absorbed once cro-magnon went global. The absorption hypothesis accounts for both the variation in ethnic races and their interbreedability.
Last edited by Vinny C; 1 year ago
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Yochahine
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We are not the same we have different genome
so that's why we have different eyes, shapes, colors, hairs... etc
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