If you're seeing this message, it means we're having trouble loading external resources for Khan Academy.
If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
Article on Marine Protected Areas and their biomass
Article on extreme life found in Mono Lake, California
Article on bacteria that can live in high temperatures
NBC news story on the Lake Vostok discovery
MacArthur’s and Wilson’s seminal book on island biogeography
Video on the history of introduced species in San Francisco Bay
Images of organisms from the Academy's SFBay:2K survey of San Francisco Bay
Lesson plan involving a debate on monocultures