Many plants, and a few other organisms, can expedite diversification even further by doubling their number of chromosomes. This process is called autopolyploidy, and under the right conditions, it can ...

About 3.7 billion years ago, a string of naturally occurring amino—the same kind that astronomers have found in meteorites ...

Plants have small pores on the underside of their leaves, known as stomata. When the sun rises, these pores open and the ...