PBS The Shape of Life Disc 1: Origins (Sponges) (2002)

 prev Index Next
Peter's DVD rating: 2.5 stars
1.1_Origins 1.2_LifeOnTheMove 2.3_TheFirstHunter 2.4_ExplosionOfLife 3.5_TheConquerors 3.6_SurvivalGame 4.7_Ultimate Animal 4.8_BonesBrawnBrains
12:15Aristotle, then Linnaeus : unchangeable species 13:00Darwin: species evolved from common ancestor 14:00First animal
18:40Cristina Diaz studies sponges in Sulawesi, Indonesia 24:30 Separated sponge cells can recombine, held together by collagen (in bath sponge) and spicules 29:00 Sponge feeding traced with colored dye
31:30 Some cells make spicules 32:15 Choanocytes 33:20 Sponge spawning
34:40 Sea Cucumbers scavenge 35:50Shripm mate in Venus's Flower Basket 36:40 Sponge Crab wears sponge
36:55 Asbestopluma captures crab larva with hooks on spicules 38:15 Spicule fossils 550 MYA (Guizhou, China) 39:30 Mitchell Sogin sequences DNA to conclude sponge is at baseof Animal Kingdom
Linnaeus
12:15 Linnaeus : unchangeable species		 sponge cells
24:30 Separated sponge cells can recombine,		 spicules
24:30 spicules
sponge feeding
29:00 Sponge feeding traced with colored dye 		spicule cells
31:30 Some cells make spicules 		choanocytes
32:15 Choanocytes
sponge spawn
33:20 Sponge spawning 		Holothuroidea
34:40 Sea Cucumbers scavenge		 Euplectella aspergillum
35:50 Venus's Flower Basket
Dromidiopsis dormia
36:40 Sponge Crab 		Asbestopluma
36:55 Asbestopluma captures crab larva		 spicule fossils
38:15 Spicule fossils
DNA
39:30 Mitchell Sogin sequences DNA 		   

Index Mar 12, 2010 CC BY 4.0 Peter Chen 2.0