Astronomers have achieved a groundbreaking feat by capturing the first clear image of a star in another galaxy. This ...

However, despite typically large amounts of life history variation, life history evolution is also subject to constraints. Life History Trade-Offs and Other Constraints Fitness would obviously be ...

This is evidence that quite separate, independent episodes of molecular evolution occurred ... a rugged stomach, and large salivary glands. In each case, evolutionary adaptations allow them ...