In this talk, biologist Anthony Barnosky discusses Earth’s five mass extinctions and whether current species declines may be part of a sixth mass extinction.

In this talk, biomedical scientist Christopher Walsh discusses how DNA sequencing technology has led to a better understanding of the genes involved in brain development.

In this talk, biomedical scientist Christopher Walsh discusses how DNA sequencing techniques have led to a better understanding of the genetic basis of autism.

In this discussion session, biomedical scientists Charles Sawyers and Christopher Walsh answer questions from students.

This playlist can be used to teach concepts in geology and evolution using mass extinction events. It can be used in general high school biology, environmental science, and earth science courses.

This playlist can be used to teach several core topics in evolution by exploring examples of lizard species evolution and the effects of mass extinctions on tetrapod evolution. It can be used in undergraduate biology courses.