Re: Naturalist! = evolutionary biologist
Even I know Attenborough is wrong, just from reading ...
The human race evolves very slowly in human timescales ...
I suspect that he's both right and wrong.
The human race will probably be evolving in terms of resistance to certain infections. A "good" flu pandemic is likely to kill off staggering numbers of people despite the best efforts of the drugs industry. So the post pandemic population is likely to have a higher natural immunity to that strain of flu. So to that extent he's wrong.
But we also help all sorts of people to procreate that couldn't do it naturally. IVF is allowing unsuccessful genetic pairings to have offspring. So this is stopping evolution from removing these people from the gene pool.
As to survival of the fittest, well we might not like the results of "fittest to reproduce" in a so called advanced civilisation. Outwardly successful people tend to have fewer children, so are choosing to not be genetically successful, in terms of having large numbers of offspring and so pass their genes on as much as possible. While typically those who've been less successful in the modern world are much more likely to have more kids and so are more genetically successful.
As they say, the future's bright, the future's orange.
We'll evolve into a species with a natural predisposition to spray tan.