What evolutionary patterns link Earth's species, from microbes to birds to human beings? In conjunction with the Walker Art Center's exhibition “Kiki Smith: A Gathering, 1980-2005,” the Bell Museum presents a special Café Scientifique on taxonomy, phylogeny, and evolution. Join biologist and Bell Museum Director Scott Lanyon for an introduction to a worldwide research effort that is equivalent in scope to the Human Genome Project, and find out how and why researchers like Lanyon are assembling an evolutionary “tree of life” that will organize the 1.7 million described species on Earth. To learn more about Smith’s artwork, which references taxonomy, visit walkerart.org. Varsity Theater, Dinkytown. www.bellmuseum.org