Confident though he was about his theory of evolution, Charles Darwin wondered why, within a single colony of ants, some became super-sized soldiers while most remained wee workers. A McGill researcher discovered the answer lies in a pair of wings.

Laura Chouinard's encounter with the runaway ox had her gripped by fear. But in the midst of the battle she resolved, "I am not going to die today."

Montreal researcher finds family meals offer enduring benefits to children.