Scientists study past ice ages to understand climate change and its impact on ecosystems.

Researchers compared achievement ages across different countries to understand educational progress.

Different cultures define ages of reason at different points in a child's development.

The comparative report examined how the ages of discretion for consent vary between neighboring countries.

The pediatric endocrinologist compared the children's bone ages to assess their growth.

The geologists compared radiometric ages from different samples to refine the volcanic timeline.

He ages out of the youth program next month, so we need to find another option.

She's aging out of the foster care system this year, so we must help her find stable housing.

After completing her A.A. Ag., Emma returned to her family's farm to implement what she had learned.

Many historians argue that the term dark ages oversimplifies a complex period of cultural development.