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Branches on the Tree of Life: The Biology of Sponges

17 minutes

Now Playing As: Captioned (English) (change)

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Part of the "Branches on the Tree of Life" series. Imagine an animal with no mouth, no digestive system, no excretory or circulatory organs, no brain nor nervous system, and no movement as an adult. In spite of their simple nature, sponges are actually one of the most interesting animal phyla when viewed in developmental, ecological, and evolutionary terms. Clarifies the structure, function, classification, and ecological roles of sponges through animations and time-lapse microscopy. Accessibility options on the DVD are: (1) expanded description, (2) English subtitles in a black box, (3) subtitled description.

Media Details

Runtime: 17 minutes

Branches On The Tree of Life
Episode 1
16 minutes
Grade Level: 8 - 12
Branches On The Tree of Life
Episode 2
17 minutes
Grade Level: 8 - 12
Branches On The Tree of Life
Episode 3
22 minutes
Grade Level: 8 - 12
Branches On The Tree of Life
Episode 4
18 minutes
Grade Level: 8 - 12
Branches On The Tree of Life
Episode 4
17 minutes
Grade Level: 8 - 12
Branches On The Tree of Life
Episode 5
19 minutes
Grade Level: 8 - 12
Branches On The Tree of Life
Episode 6
24 minutes
Grade Level: 8 - 12
Branches On The Tree of Life
Episode 7
20 minutes
Grade Level: 9 - 12
Branches On The Tree of Life
Episode 8
16 minutes
Grade Level: 8 - 12
Branches On The Tree of Life
Episode 9
7 minutes
Grade Level: 8 - 12

Viewer Comments

  • Tiny default profile photo
    Anonymous (Tucson, AZ)
    April 20th, 2015 at 10:22 AM

    Good intro to animal biology

  • Tiny default profile photo
    John C. (Tucson, AZ)
    April 16th, 2015 at 07:39 PM

    High interest