David Shiffman

3 weeks ago | sportdiver.com | David Shiffman

03/29/2025 -  Mako sharks have thin, sharp teeth for piercing their prey. Shutterstock.com/Lukas Walter Question: Different shark species have radically different shaped teeth, so much so that you can identify what species a tooth came from. Why is that? And why do sharks lose so many teeth and keep regrowing them? To answer this question, I spoke with Dr. Lisa Whitenack, a Professor of Biology at Allegheny College who is an expert in the form and function of shark teeth.

3 weeks ago | scubadiving.com | David Shiffman

03/29/2025 -  Mako sharks have thin, sharp teeth for piercing their prey. Shutterstock.com/Lukas Walter Question: Different shark species have radically different shaped teeth, so much so that you can identify what species a tooth came from. Why is that? And why do sharks lose so many teeth and keep regrowing them? To answer this question, I spoke with Dr. Lisa Whitenack, a Professor of Biology at Allegheny College who is an expert in the form and function of shark teeth.

2 months ago | truthout.org | David Shiffman

The re-election of Donald Trump has scientists and conservationists like me worried about the wildlife and wild places we’ve dedicated our lives to protecting. This is especially true for ocean and coastal natural resource management and endangered species conservation, given Trump’s ongoing rhetoric. He’s attacked climate science and supported a plan to dismantle the National Oceanic and Atmospheric Administration.

Jan 22, 2025 | nationofchange.org | David Shiffman

The re-election of Donald Trump has scientists and conservationists like me worried about the wildlife and wild places we’ve dedicated our lives to protecting. This is especially true for ocean and coastal natural resource management and endangered species conservation, given Trump’s ongoing rhetoric. He’s attacked climate science and supported a plan to dismantle the National Oceanic and Atmospheric Administration.

Jan 21, 2025 | therevelator.org | David Shiffman

The re-election of Donald Trump has scientists and conservationists like me worried about the wildlife and wild places we’ve dedicated our lives to protecting. This is especially true for ocean and coastal natural resource management and endangered species conservation, given Trump’s ongoing rhetoric. He’s attacked climate science and supported a plan to dismantle the National Oceanic and Atmospheric Administration.