A fundamental goal of science is to discover rules. If we find that two chemicals react to yield a specific compound, then we expect that to reflect a general truth that other scientists can repeat.

The genomic diversity of eukaryotic microorganisms has not yet been fully investigated but, as reviewed in this month's column, this is beginning to change. Our view of what a typical eukaryotic ...

Add one chopped onion and fry. When translucent, add spice mixture and two finely chopped tomatoes. Heat for five minutes, then add 1½ pounds shrimp and cook for 7–10 minutes. Finally ...