Biomagnification in food webs, energy pyramids / trophic levels
https://www.youtube.com/watch?v=TZk6vcmLcKw
Biomagnification: ocean mercury
https://www.youtube.com/watch?v=8W_ywzhkR90
Deep-Sea Hydrothermal Vents: ecosystem with CHEMOSYNTHESIS, not PHOTOSYNTHESIS!
https://www.youtube.com/watch?v=8W_ywzhkR90
Population dynamics
http://www.youtube.com/watch?v=s4Ty2Oo7MnI
Deer population research
https://www.youtube.com/watch?v=7nr9rQpm2A4
Snake population studies: pit tags
https://www.youtube.com/watch?v=5DR50IgvE7g
Caribou: domino effect of climate
https://www.youtube.com/watch?v=fk2pRDX4DsY
Wolves: keystone species that control rivers
https://www.youtube.com/watch?v=ysa5OBhXz-Q&t=154s
Predator Importance: Yellowstone wolves, elk
https://www.youtube.com/watch?v=SAGEXDlUHDE
Terrestrial biomes
https://www.youtube.com/watch?v=RFEV-hiP2gQ
A silly version of the Nitrogen Cycle!
https://www.youtube.com/watch?v=tSzLQojOItg
What's this item about? What makes it interesting? Write a catchy description to grab your audience's attention...
Nitrogen cycle!
https://www.youtube.com/watch?v=PfqvACMyg68
The carbon cycle!
https://www.youtube.com/watch?v=CLqFUI2Pvlc&t=21s