The female chooses. Peregrines generally mate for life, returning each year to the same area and even the same nest. However, the female will accept a new mate if the first is killed. There’s ...

The Second Cycle, or middle period of our lives, brings about the slow emergence of our individual and creative talents. The initial part of this cycle - the early and mid 30s - represents a struggle ...

The cellular life cycle, also called the cell cycle, includes many processes necessary for successful self-replication. Beyond carrying out the tasks of routine metabolism, the cell must duplicate ...

A life cycle is the series of stages something passes through during its lifetime. We also use the term for things that are not living, like cell phones. The life cycle for anything you buy includes ...

This lesson plan provides students with evidence that all living things grow and change as they progress through their life cycle. All of the activities detailed in this lesson plan can be done with ...