Games & Activities

This informative book explains the life cycle of a salmon, including the stages of development and changes it goes through to become an adult. The book also includes a table of contents, one infographic, informative sidebars, a "That's...

Evolutionary change is usually incremental and continuous, but some increases in organizational complexity have been radical and divisive. Evolutionary biologists, who refer to such events as "major transitions", have not always appreciated that these...