There's more than one theory of evolution, most notably Darwinian natural selection. But according to LSU biology professor Prosanta Chakrabarty, we're still evolving.
We're not the goal of evolution. Think of us all as young leaves on this ancient and gigantic tree of life — connected by invisible branches not just to each other, but to our extinct relatives and our evolutionary ancestors.
From pond scum to fish to humans
From fish to amphibians to reptiles to primates with big brains, every living thing today is the product of four billion years of evolution. The shared ancestry may appear linear (e.g. monkeys > chimpanzees > humans) but single cell organisms are still evolving to this day.
Meanwhile, ‘primitive' bacteria and plants will be the ones that survive us all.