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The Brain Scoop: Collecting Voucher Species

5 minutes 45 seconds

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What is the scientific purpose of collecting voucher species? In this episode, host Emily Graslie discusses how these specimens will inform future generations about changes in species over time. Part of "The Brain Scoop" series.

Media Details

Runtime: 5 minutes 45 seconds

Topic: Science
Subtopic: Conservation, Science Experiments, Science Methods
Grade/Interest Level: 10 - 12
Standards:

Release Year: 2014
Producer/Distributor: The Field Museum
Series: The Brain Scoop

The Brain Scoop Web Page

Illustration of a skeleton. Arrows indicate the front right toe and back left heel. Caption: Their elongated heel bone and Achilles tendon.

Closeup of an animal with a pointed snout, large claws, and overlapping scales covering its body. Caption: They are covered in keratin scales,

Person speaking. Caption: To de-extinct a species requires finding viable DNA,

Person speaking. Caption: that's a lot of species -- which ones do we bring back?

Person gesturing above an open book. The book has a broken spine and faded, handwritten text. Caption: So we catalogue the most primitive first

Person speaking. Caption: Well, today we're gonna talk about mammalian diversification.

Person holding a skeleton approximately the length of her thumb. Caption: …each of the limbs, and the scapula.

Person holding a taxidermized flying squirrel with legs extended. Caption: As you know, flying squirrels don't fly, they glide.

Platypus with a duck-like snout, webbed feet, and a furry body. Caption: They're the craziest things I've seen in my life.

Giant walking stick pinned to a board for display. Caption: This one's from Malaysia.