Imagine a photograph of your great-grandparents, grandparents and parents side by side. You’d see a resemblance, but each generation would look distinct from its predecessors. This is the process of ...

Imagine a photograph of your great-grandparents, grandparents and parents side by side. You’d see a resemblance, but each generation would look distinct from its predecessors. This is the process of ...

The 30-Year Evolution of Mission: Impossible Stunts Of all the reasons to watch the Mission: Impossible movies, more than the exotic locales or high-tech macguffins, watching Tom Cruise risk life and ...

Dollo's law, as it came to be known, implies that specialization is largely a one-way street, with organisms accumulating layers of complexity that make backward evolution impossible. While Dollo's ...