Chap 16   Chapter 17 extras: Ecosystems, communities, and species interactions   Chap 18

"The hound is running for his dinner, the rabbit is running for his life." - Aesop

Supplementary videos
Trophic cascade in Yellowstone: wolves and deer and forests and rivers
A golden detritivore: this top carnivore also scavenges on carrion
Operation Dung Beetle: decomposer or detritivore? (David Attenborough)
Cordyceps: a killer fungus: is it a decomposer? Parasite?
Lancet fluke: mind control parasite
Fossil Fuels 101: how they were formed
Hydraulic Fracturing and Horizontal Drilling for Natural Gas (Chevron infomercial)
Extracting oil sands for the Keystone XL pipeline (Washington Post)

Extra credit readings

Additional material


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