I don't think you get how evolution works. It doesn't work rapidly, it works over an extended period of time.
These toads were fitted to the environment they were in, and no species can change to destruction of their environment overnight.
But for some organisms, destruction of their environment would require the radical changing say of most of Europe and global human civilization and others it would require a modest alteration of a waterfall.
4) You say you see no evidence of niche species expanding, and yet that is by definition what must always happen.
Not by definition.
If man fucked up some kind of experiment and it drastically altered the ratio of oxygen in the atmosphere for example over the period of mere weeks, we ourselves would not manage to survive
I disagree. We have a remarkable ability to adapt even over very short time periods. For example, nuclear subs would remain habitable for years. That would be enough time to reestablish a human presence on the surface of Earth. And one can always come up with biological, mechanical, or
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