PBS The Shape of Life Disc 2: The First Hunter (Flatworms) (2002)

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Peter's DVD rating: 3.5 stars
QH325 .S453 2001 Circulation Desk Very interesting footage of penis fencing among flatworms.
5:50Sponges and cnidarians 6:40Trace/trail fossils 8:00First hunter 565 million years ago.
10:00Bilateral symmetry, head 11:40 Flatworms 14:30 New Zealand Flatworm
22:10 Planarian 24:00Planarian feeds via pharynx 26:30 New Zealand Flatworm hunts earthworms in Scotland
30:00Parasitic Tapeworms 36:30 Swimming flatworms 37:30Flatworms are hermaphrodites and undergo internal fertilization
39:30Hermaphrodite flatworms perform penis fencing 47:00Genetic code of fruit flies contains 13,000 genes. 50:00Hox genes control development
Flatworm
11:40 Flatworms 		Arthurdendyus triangulatus
14:30 New Zealand Flatworm 		Turbellaria
22:10 Planarian
Planarian
24:00 pharynx 		Arthurdendyus triangulatus
26:30 New Zealand Flatworm 		Taenia
30:00 Tapeworms
SwimmingFlatworm
36:30 Swimming flatworms 		Penis
39:30 penis fencing 		 

Index Jan 07, 2010 CC BY 4.0 Peter Chen 2.0