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 ...

This is what’s called the ‘life cycle’. All animals change during their life cycle but at different speeds. Some of us don’t change that much, we just get bigger and change our shape a bit.

Amid the country’s reckoning with loneliness and isolation has come a startling truth: Americans are spending far more time ...

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 ...

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 ...