There are two basic life-cycle patterns among animals. Many animals have complex life cycles with two or more very distinct stages; metamorphosis is the usual term for the often-radical changes that ...

Students explore and compare chicken and butterfly life cycles. In this lesson, students explore and compare chicken and butterfly life cycles through the development of scientific drawings or models.

Researchers uncover for the first time the mechanism that likely explains how embryos form either a larva or a miniature version of the adult. For over 100 years, biologists have wondered why animals ...

Cats are one of the most popular house pets to own around the world. Independent, cuddly, and vocal, most house cats bring joy and entertainment to the average family. But how long do house cats live, ...

What does the life cycle of a cicada look like? What happens during the 17-year period between each emergence? The DuPage County Forest Preserve answers these questions and more in a creative ...