Ecology is the study of the interactions of living things with each other and their environment. It’s a field that not only lets us explore the interconnections between living things, but also how our environment affects us, and how we influence it in turn. In this episode of Crash Course Biology, we’ll get an overview of the field of ecology, see how matter and energy are conserved and transferred through ecosystems, and follow an ecological mystery surrounding the deaths of hundreds of elephants in Botswana, Africa.

Chapters:
An Ecological Mystery 00:00
Biotic & Abiotic Factors 1:13
Ecosystems 3:15
Fields of Ecology 5:54
Trophic Levels 7:04
Energy Flow through Ecosystems 9:25
Review & Credits 11:48

This series was produced in collaboration with HHMI BioInteractive, committed to empowering educators and inspiring students with engaging, accessible, and quality classroom resources. Visit BioInteractive.org/CrashCourse for more information.

Sources: docs.google.com/document/d/1GLDtAXE6ekg4Chk2qN3TYb…

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