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LATEST ARTICLES

  • Quarry diver with fish

    In this edition of Ask a Marine Biologist, Dr. David Shiffman discusses how organisms get into isolated, human-made habitats.

    There are several avenues for organisms to populate newly-formed bodies of water, including floods and groundwater.
  • Great whit shark near surface

    In this edition of Ask a Marine Biologist, Dr. David Shiffman answers a question about what’s still lurking in the deep.

    Humanity discovering a large species perviously unknown to science is almost certain. Here's why.
  • Sardine school

    In this edition of Ask a Marine Biologist, Dr. David Shiffman compares two grave threats to wild marine life and places.

    Climate change and overfishing are both wreaking havoc on oceans. Here’s which one should be our priority to fix first.

TRAINING

  • Lesser electric ray nestled in sand

    In this edition of Ask a Marine Biologist, Dr. David Shiffman discusses the double-edged sword of using bioelectricity as a weapon

    A ray's electric pulse is generated via modified muscle cell and is generated to either to stun prey or startle away predators.
  • A scuba diver feeds a shark

    In this edition of Ask a Marine Biologist, Dr. David Shiffman answers a question about how divers feeding sharks impacts the broader ecosystem.

    Feeding sharks can be safe and minimally disruptive, but the presence of extra food and sharks in one location repeatedly may have impacts we’re only starting to…
  • A baby sea turtle swims through marine debris

    In this edition of Ask A Marine Biologist, Dr. David Shiffman tackles a question about an ocean conservation issue loaded with misinformation.

    The most effective tactic is prevention, like participating in beach clean ups and supporting policy that reduces plastic reliance.
  • Grey reef sharks school in Ningaloo Reef off of Western Australia

    In this edition of Ask a Marine Biologist, Dr. David Shiffman talks about how sharks breathe.

    The factoid sharks have to move constantly to stay alive is a common fun fact. But is it true?

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