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Yes I'm familiar with the theory of Panspermia. Simple life could have arrived aboard comets or asteroids.
Earth’s most tenacious creature can live in boiling water, solid ice, and the intense radiation of space. It can survive a decade in a desert, without a drop of water to drink, or in the deepest trenches of the sea.
Meet the tardigrade. 5 Reasons Why The Tardigrade Is Nature’s Toughest Animal – Nat Geo TV Blogs
Yes, I find Panspermia more plausible than intelligent seeding. With fossilized records and DNA evidence, there's no doubt humans evolved on planet earth.
Yes, I find Panspermia more plausible than intelligent seeding. With fossilized records and DNA evidence, there's no doubt humans evolved on planet earth.
Again... adaptation is not what is defined as evolution. There is no change in species.
I like to bowl and do it often - slightly below a 200 average.
In time, the surfaces of my fingers become hardened. Is that evolution? Or adaptation?
That's basically what's described in the OP.
Evolution is defined as changes over generations...In this case it took 20 generations for the lizards to grow larger toe pads and stickier feet...A lot different than you developing calluses on your fingers....If you stop bowling your calluses will disappear....I don't think the lizards toes are going to shrink....An individual does not evolve.
An adaptation is a feature that is common in a population because it provides some improved function. Adaptations are well fitted to their function and are produced by natural selection. Evolution 101: Adaptation
Yes, I find Panspermia more plausible than intelligent seeding. With fossilized records and DNA evidence, there's no doubt humans evolved on planet earth.
North American Indians were never very good at growing hair on their bodies.
Again... adaptation is not what is defined as evolution. There is no change in species.
Evolution is when the gene frequency in a population changes from one generation to the next.
Quote:
I like to bowl and do it often - slightly below a 200 average.
In time, the surfaces of my fingers become hardened. Is that evolution? Or adaptation?
That's basically what's described in the OP.
That is not the case.
Your hardened fingers will not be passed off to your offspring - there is no genetic change at all. (That was Lamarck's theory, and it was wrong.) In the article, there is genetic change - the genes for sticky feet rose in frequency in the population over generations. That is evolution.
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