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BrainStuff

How Does the Slow Cone Snail Catch Prey?

BrainStuff

iHeartPodcasts

Natural Sciences, Technology, Science

4.01.7K Ratings

🗓️ 6 November 2023

⏱️ 6 minutes

🧾️ Download transcript

Summary

Cone snails move slow, but catch prey fast with harpoons or clouds of paralyzing toxins. Learn more in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/marine-life/cone-snail.htm

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Transcript

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0:00.0

Welcome to BrainStuff, a production of I Heart Radio.

0:05.0

Hey Brain Stuff, Lauren Bogobom here.

0:10.0

Cone Snails are a group of around a thousand species of venomous predatory marine snails that live in shallow tropical waters around the globe.

0:19.6

Their pretty cone-shaped shells are intricately patterned and brightly colored,

0:24.0

apprised by seashell collectors, and their venom is fascinating to

0:27.9

biomedical researchers and science fiction writers alike.

0:31.3

A pretty high profile for a very slow, not particularly aggressive animal that

0:36.3

spends its days toddling after worms, fish, and other snails for dinner. For example, in the real world world their venom has been used in therapies from

0:46.0

diabetes treatment to terminal pain management and this is a little bit of a

0:51.1

deep cut but take the Jurassic Park film sequel, The Lost World.

0:55.0

In the movie, an air gun with venom darts is used to take down pesky dinos.

1:00.0

The active ingredient is purported to be an enhanced venom from the cone-snaile species

1:05.5

conus purposons, which the movie says is the most powerful neurotoxin in the world.

1:15.0

Before the article this episode is based on, How Stefork spoke with Helena Safavi,

1:17.0

an assistant professor of biochemistry at the University of Utah

1:20.0

who studies Constales and their venom.

1:22.0

She said, in the movie, who studies cone snails and their venom.

1:23.0

She said, in the movie, the venom is described as the most powerful neurotoxin in the world

1:28.0

that acts within one two thousandth of a second,

1:30.0

faster than the velocity of nerve conduction.

1:33.0

None of this is true, but nevertheless very entertaining.

1:38.0

Cone snails are very slow animals that cannot graze on algae like their non-bedemus snail relatives, but also have no means of mechanical

...

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