Humans are a very tiny part of the biosphere. Evolution is certainly ongoing in all of the world's organisms. Humanity's biggest role in this is of course our o

Humans are a very tiny part of the biosphere. Evolution is certainly ongoing in all of the world's organisms. Humanity's biggest role in this is of course our outsized environmental impacts which place new selection pressures on life, not freezing genomes in their current state or replacing grey matter with GPUs or whatever. It's also important to consider the timescales involved in this--often hundreds of thousands to millions of years. However it's not necessarily a gradual, continuous process either. I read a lot 15-20 years ago about 'puncutated equilibrium', which basically states that species in an ecological region stay pretty constant until some relatively brief event (such as climate change or the introduction of a new predator) causes everything to adapt very rapidly to the new conditions, and then another period of stability sets in. Stephen Jay Gould wrote about this quite a bit for the lay reader and I believe did a lot of the theoretical development when he was a younger scientist. Whe I was in grad school, my paleontologist friends tended to scoff at it so it might not be in vogue but the books are still worth reading even if possibly dated. The other observation that Gould promotes a bit is that evolution is quite chaotic and that most genera and species simply get out competed and die off instead of morphing into something new. My hunch is that we're forcing quite rapid evolution right now, mostly due to habitat loss and substantial modification of ecosystems (i.e. monoculture fields, removal of alpha predators on land), and climate change will increase in importance throughout the next century. The real next movement of evolution will probably be the repopulation of earth by pollution-resistant creatures after we've killed ourselves and taken a good chunk of life with us.