Shark teeth under threat. Ocean acid is eating away at sharks’ teeth. WION report video/ transcript

Climate change, global warming could leave sharks toothless. "Remember the movie Jaws—the chilling fin, the unforgettable theme, and those terrifying teeth? Now imagine a world where sharks, the ocean’s top predators, are left toothless. It might sound like a sci-fi twist, but new research suggests it's a real and alarming possibility. Scientists warn that rising ocean acidification and pollution are threatening the very enamel that makes shark teeth so deadly. What could this mean for marine ecosystems—and us?: The Heating Planet Project at City of Angels Blog side trip, video/ transcript:

Now, here's a question. Do you remember 0:01 the movie Jaws, the chilling fin, the 0:04 iconic theme, and of course, those 0:05 terrifying teeth? But what if the 0:08 ocean's top predator sharks were 0:10 suddenly left toothless? Well, a new 0:12 study shows that may not just be a 0:15 horror movie twist, but a frighteningly 0:17 real possibility. Here's a report that 0:19 explains that 0:23 [Music] 0:26 they've ruled the oceans for millions of 0:27 years. Fierce, fast, fearsome. But a 0:31 silent enemy is now gnawing at the apex 0:33 predator from the inside out. 0:35 [Music] 0:40 We discovered that oceanic atic 0:42 exitification yeah can damage shark 0:45 teeth. And yeah, it's we know for many 0:48 many years that it corolls also the 0:51 shells of muscles and also coral 0:54 skeletons. But now we discovered that 0:56 also shark teeth are affected. 0:59 A new study published in Frontiers in 1:02 Marine Science reveals that the rising 1:04 acid levels in our oceans driven by 1:06 climate change are corroding shark 1:08 teeth. According to the IPCC, ocean pH 1:12 could drop to 7.3 by the year 2300, 1:15 making the seas 10 times more acidic 1:18 than they are today. To simulate this 1:20 acidic future, scientists placed 1:22 naturally shed shark teeth in tanks 1:25 mimicking ocean pH levels from today and 1:28 those predicted for centuries to come. 1:30 The results, cracks, holes in the 1:33 enamel, and serious root corrosion. 1:37 The sharks can replace their teeth. This 1:39 is one good news. But they have to 1:42 produce new teeth. And this could be 1:44 harder in more exitificated water. And 1:46 we also know that it sometimes take 1:49 maybe month or years to use one teeth 1:52 and to replace it. So one teeth is 1:54 exposed a very long time to sea water. 1:58 Without functioning teeth, sharks will 2:00 struggle to hunt and their survival 2:02 won't be the only thing at stake. A grim 2:05 forecast for the kings of the ocean and 2:07 a chilling warning for the rest of us. 2:09 The study underscores what scientists 2:12 have been saying for years. What we do 2:14 to the planet, we also do to its most 2:17 powerful creatures. For the sharks, it's 2:19 not another sequel to Jaws. It's 2:22 reality. Bureau report beyond World is 2:25 one. 2:28 [Music]