Search Results

Search Results

Showing 161-180 of 282 Resources
  • Q&A on Cone Snails

    Q&A on Cone Snails

    Lecture

    (9 min 18 sec) In this ten-minute Q&A session, Dr. Olivera answers questions on cone snail behavior, venoms, and biodiversity.

  • Biodiversity at a Snail's Pace

    Biodiversity at a Snail's Pace

    Lecture

    (58 min 29 sec) Cone snails have evolved many different toxins for different uses. Total molecular biodiversity may number in the millions.

  • From Venoms to Drugs

    From Venoms to Drugs

    Lecture

    (58 min 29 sec) Venomous carniverous cone snails are a rich source of molecules for scientific research and potential drug development.

  • Exploring Biodiversity: The Search for New Medicines

    Exploring Biodiversity: The Search for New Medicines

    Lecture

    What medical secrets do venomous snails hold? How can listening in on bacterial conversations help develop new antibiotics? In four presentations, Dr. Bonnie L. Bassler and Dr. Baldomero M. Olivera reveal how a deeper understanding of nature and biodiversity informs their research into new medicines.

  • Cone Snails: Versatile Hunters

    Cone Snails: Versatile Hunters

    Clip

    (13 min 39 sec) Dr. Jason Biggs of the University of Guam Marine Laboratory discusses the anatomy of cone snails and introduces us to a variety of cone snail species with different tactics to hunt and capture their prey.

  • A Taser causes rigid paralysis

    A Taser causes rigid paralysis

    Clip

    (49 sec) A Taser hyperexcites the nervous system to cause a rigid immobilization of its target.

  • Conus tulipa hunts fish by net

    Conus tulipa hunts fish by net

    Clip

    (1 min 7 sec) Unlike a hook-and-line type fish-hunter, a net-hunting cone snail lures its prey into its wide mouth.

  • Conus textile strikes a snail

    Conus textile strikes a snail

    Clip

    (44 sec) A snail-hunting species of cone snail stings its prey repeatedly, inducing the prey to thrash about.

  • Conus striatus strikes a fish

    Conus striatus strikes a fish

    Clip

    (44 sec) A species of fish-hunting cone snail quickly immobilizes its prey and swallows it.

  • Conus imperialis strikes a worm

    Conus imperialis strikes a worm

    Clip

    (31 sec) A worm-hunting cone snail species feeds on fireworms, and is unaffected by the prey's sharp bristles.

  • Demonstration: Conus geographus can kill you

    Demonstration: Conus geographus can kill you

    Clip

    (1 min 35 sec) Larger cone snails produce more venom and are more dangerous to human beings in an accidental stinging.

  • Conus catus strikes a fish

    Conus catus strikes a fish

    Clip

    (1 min 11 sec) A fish-hunting cone snail strikes its prey with a venomous harpoon, causes paralysis, and eats it.

  • Conus bullatus "lightning strike"

    Conus bullatus "lightning strike"

    Clip

    (1 min 10 sec) This species of cone snail immobilizes its prey in a split second with lightning-strike cabal toxins.

  • Bobtail squid swimming and burrowing

    Bobtail squid swimming and burrowing

    Clip

    (1 min 3 sec) The bobtail squid swims during the night to hunt. During the day, it burrows to hide from predators.

  • Lightning-strike cabal acts like a Taser

    Lightning-strike cabal acts like a Taser

    Animation

    (2 min 9 sec) Some cone snail toxins chemically hyperactivate neurons and immobilize prey, much like a Taser.

  • Motor cabal toxins block motor neuron synapses

    Motor cabal toxins block motor neuron synapses

    Animation

    (3 min 28 sec) Multiple cone snail toxins attack different molecules of the nervous system and cause paralysis.

  • Prialt blocks motor synapse in fish

    Prialt blocks motor synapse in fish

    Animation

    (2 min 31 sec) Prialt, a drug derived from cone snail venom, paralyzes fish by blocking calcium channels at a motor synapse.

  • Prialt blocks pain signaling in mice

    Prialt blocks pain signaling in mice

    Animation

    (2 min 58 sec) Prialt does not block the mammalian motor synapse, but blocks the pain pathway in the spinal cord.

  • Classroom Activities: Mirror-Tracing Activity

    Classroom Activities: Mirror-Tracing Activity

    Activity

    To accompany the lecture series Making Your Mind: Molecules, Motion, and Memory.

  • Electrical Activity of Neurons

    Electrical Activity of Neurons

    Click & Learn

    Measuring neuronal activity, generating action potentials, and recording the firing of individual neurons.

Refine Results

Narrow your choices by selecting areas below.

Topics

Extended Filters