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Joy of Learning - Celina Philips - Super Heroes… duration 7 minutes 28 seconds Joy of Learning - Celina Philips - Super Heroes… Joy of Learning - Celina Philips - Super Heroes in Animal Science	Joy of Learning - Celina Philips - Super Heroes in Animal Science rumen ruminant sheep food microbes compartment stomach superheroes oil source bacteria waste animals byproducts signal landfills fire grasslands population protozoa From Chico State Media Productions 0 likes 49 plays 0