In Focus: ‘Skin teeth’ stories: using shark denticles to look to their past

Our guest post this week comes from Erin Dillon, a short-term fellow at the Smithsonian Tropical Research Institute. If you would like to contribute a guest post, please get in touch on Twitter or Facebook. What were shark communities like before humans? We know that shark populations have waned significantly over the past several centuries, but we don’t yet…