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\nWhy We Only Have Ten Toes (It's a Long Story)\n

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\n\nPublisher:\n\nPBS\n\n\n
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\nToday, all mammals from humans to bats have five fingers or fewer. Yes, even whales, whose finger bones are hidden in their fins. Birds have four or fewer and amphibians get the best of both worlds, often having four digits on their...\nToday, all mammals from humans to bats have five fingers or fewer. Yes, even whales, whose finger bones are hidden in their fins. Birds have four or fewer and amphibians get the best of both worlds, often having four digits on their “hands” and five on their “feet.” But no species of vertebrates have more than five digits, let alone eight!\n
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Resource Details

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Curator Rating
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Educator Rating
Not yet Rated
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Media Length
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9:13
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Grade
12th - Higher Ed
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Subjects
Science
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Media Type
Instructional Videos
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Source:
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\nPBS Eons\n\n
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Date
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2022
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Concepts

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fish, walking, evolution, bones, species, scientists, time, footprints, fins, paleontology
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Additional Tags

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devonian, age of fishes, acanthostega, fingers, digits, tetrapod, ichthyostega, ichnology, tracks, locomotion, quadruped, limbs, pederpes, casineria, dollo’s law, natural history, pelvic girdle, bone structure, fossil record, small bones, early tetrapods, hind limbs, tetrapods, prints, moved, researchers, show, animal, sizes, feet, found, body, toes, 5 digits, 7 digits, land
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Classroom Considerations

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Best For: Explaining a topic
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Educator Ratings

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