Danielle Gerhard, PhD | Mar 22, 2024 | 10+ min read
With the help of directed evolution, scientists inch closer to developing viral vectors that can cross the human blood-brain barrier to deliver gene therapy.
Diverse lines of evidence point to humans’ presence in the New World long before the dawn of Clovis culture. But rewriting this chapter of human history raises many questions about how these early people came to inhabit these continents.
Evidence is mounting that epigenetic marks on DNA can influence future generations in a variety of ways. But how such phenomena might affect large-scale evolutionary processes is hotly debated.
Two 9,000-year-old skeletons will be held by University of California, San Diego, officials—rather than turned over to American Indians for reburial—until a lawsuit is settled.