Intriguing Mysteries of Life
When biologists get together to discuss the nagging mysteries in their diverse field, there's always that elephant in the room: How did life spring up from non-life? But, according to highly regarded cancer researcher Robert Weinberg, it's an elephant that most biologists ignore, or at least discreetly avoid. "Origin of life is not something people work on that much because it's so far away from resolution."
Instead, biologists turn their attention to other problems, fruits that hang a bit lower on the tree. Though these queries may not be of existential interest, they're no less fascinating.
Here are six unsolved problems in biology.