Apocalypse Now (yet again) or the false god of biodiversity

Here we go again.

The UN (who else) has its annual freak-out about a million species being threatened by humans. (There are about a trillion species on Earth). The 6th mass extinction is upon us! The solution is mass suicide by humans! The humans left will be happily dead ever after. Failing that we could have World Government.

When life on earth began, there was no biodiversity. As individual life-forms survived environmental changes, new species were created. Sometimes the parent species survived and sometimes not. Sometimes the new species did not survive further changes. The results of survival we call evolution. As for anything else there is an optimum number of species for any given environment, in any given place at any given time. Too many species is a worse thing than too few. Too few, and new species will always be formed to exploit the available environment. Too many, and every species is miserable.

All invasive species are – by definition – successful species. All endangered species are – also by definition – failing species. “Protecting” failed, but somehow attractive, species is entirely an emotional response by humans but it has no rational purpose. The rational and responsible approach to biodiversity would be to genetically modify failing species to survive or to let them become extinct in a world where they have no place.

Judging by the posts I have been driven to write in recent years, I must find all sanctimonious, self-righteous apocalypse predictions somewhat obscene.

Mass extinctions correct for evolution’s greater than 99% failure rate

Earth has too many failed species and 30% need to go extinct

There was no biodiversity to begin with

Raging biodiversity – “One trillion species on earth”

I just repeat my post from 2018.

The biodiversity myth (or How many species should there be?)

How many species should there be?

In any given environment, even with no change in the environment, natural selection will see to it, given enough time, that the number of species will increase to fill the available space. Competition between species will increase with increasing biodiversity. Species incapable of coping with the competition will restrict themselves to protected niches or disappear. As environment changes, modifications will also follow. As environment changes, species which were once viable may become extinct, continue in a suitable niche or adapt.

As far as we know the earth is the only planet on which life has developed.


Time and the laws of the Universe were established soon after the Big Bang singularity occurred some 13.8 billion years ago. ………… The earth itself was formed when it congealed about 4.54 billion years ago……. Chemistry between atoms and molecules happened. About a billion years later chemistry became biochemistry. Somehow RNA molecules (the RNA world) appeared. Some of these were replicating molecules. Some of these arranged themselves into single celled organisms. Single celled life began. Around 500 million years ago, complex multi-cellular life took off.

In the 500 million years since there have been at least 10 major extinctions and 5 Great Mass Extinctions. The last one was around 50 million years ago when the large dinosaurs “disappeared” (though that disappearance may have taken many thousands, or even hundreds of thousands, of years). Nevertheless it was the spaces left vacant in the environment which enabled, and were filled by, the mammals and in turn the primates and humans. …..



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