The findings, which detail how amino acids shaped the genetic code of ancient microorganisms, shed light on the mystery of how life began on Earth. "We're describing the events that shaped why that ancestor got the amino acids that it did." "Protein folding was basically allowing us to do evolution before there was even life on our planet," Fried said. "We're trying to find out what was so special about our canonical amino acids," Fried said. "The universe seems to love amino acids," Fried said.