Browsing: Lens_biology

On a chilly afternoon last October, at a University of Northern Arizona conference, Thomas Whitham, a plant geneticist, proposed a plan to save hundreds of species from extinction. For the last several years, Whitham said, he and his colleagues had used a series of experimental gardens to study how plants are being affected by warming […]

Before her accident Heather Thompson was, by any measure, very successful. She lived just outside Seattle’s urban sprawl, was a CEO and a nationally respected business strategist, married, and had a two-year-old daughter. “I was at the pinnacle of my career,” she said. Then, on March 6, 2011, Thompson went to the grocery store and, […]

When Carl Sagan, the late astronomer and original Cosmos host, published his first novel, Contact, in 1985, Studs Terkel, the long-time radio broadcaster, asked him a month later to chat with him. Their subject, of course, was aliens, and the question of whether we’d ever establish good relations with them. In their conversation—which Blank on Blank, […]

Humans have marvelous powers of recognition. No one’s surprised when parents identify their child in a crowd by a glimpse of her face or echo of her voice. But we aren’t unique in this regard. Other creatures have evolved impressive powers of discrimination. Take birds. “Their recognition system is really quite remarkable,” says Mark Hauber, […]

Our veins are swimming with immune cells of many different kinds. Some bear the memory of previous infections, in case we should encounter them again; some are actively fighting invaders; others are merely on the look-out. Counting all of the varieties of cells and what molecules they are producing gives researchers a profile of someone’s […]