Retracing the ancient battles between jumping genes and the defenses human cells deploy to keep them in check.
New research has classified vertebrate evolution in relation to periods of evolution marked by changes in specific kinds of genes.
Scientists have an ambitious new strategy for untangling the evolutionary history of humans and their biological relatives: obtain, preserve, and sequence the DNA of approximately one species for each genus of living mammals, birds, reptiles, amphibians, and fish.
HHMI scientists discover a human DNA sequence that has evolved rapidly since humans diverged from their closest evolutionary relatives.
The repeated copying of a small segment of DNA in the genome of a primeval fish may have been crucial to the transition of ancient animals from sea to land.
Scientific curiosity is beginning to bring to life the genome of a small shrew-like creature that prowled the forests of what is now Asia more than 80 million years ago.
Hundreds of stretches of DNA may be so critical to life's machinery that they have been “ultra-conserved” throughout hundreds of millions of years of evolution. Led by HHMIinvestigator David Haussler, researchers at the University of California, Santa Cruz, have found precisely the same sequences in the genomes of humans, rats, and mice.