If you have been following human progress, you will see that we have now built machines that are more intelligent than humans and we are using biotechnology to build supercreatures.
In biotechnology, humans are now building bacteria and animals that can survive in extreme environments full of heat or cold and radiation. Many of these produce products useful to humans. However, anyone can use these genetic tools to build new species. Just wait for a home-grown terrorist to build a superflu that is resistant to all drugs we have now and slaughters billions.
AI is now better at humans in playing games, seeing and identifying things, operating motor vehicles, investing, and dozens of other fields. It’s only a matter of time till self-improving AI comes and quickly grows far beyond our control.