When you hear about alien lifeforms, one of the most common phrases is "silicon-based life." The idea crops up often in science fiction—but what does it mean? Would it really look like burnt pizza
? Is it even possible? What other forms of life are there?
Previously, we looked at the basic concepts of evolution from the perspective of research biology. If you haven't already read Part I
, you might wish to do so.
Examples from the phylum Onychophora, one of the most peculiar kinds of worms. […]