Why Does Life on Earth Go Extinct? - Lesson Plan

The video explores extinction, defining it as the end of a species' existence. It discusses factors affecting extinction risk, such as sparse populations and genetic bottlenecks. Traits making species vulnerable include rarity and low fecundity. The video covers mass and background extinction events, highlighting current high extinction rates due to habitat loss. It emphasizes human responsibility in preventing extinctions and the importance of biodiversity for ecosystem functions and intrinsic value.

What is the working definition of extinction in biology?

Explain the concept of 'functionally extinct' species.

What factors contribute to a species' vulnerability to extinction?

Describe the difference between natural extinction and mass extinction.

What are some of the leading causes of extinction today?

How do current extinction rates compare to the background extinction rate?

Why is it important to consider the intrinsic value of species?