Ancient Predator Had a Killer Jaw | National Geographic

less than 1m read

·Nov 11, 2024

Curse of the buzzsaw came in swirling oceans. 275 million years ago lived one of the top predators of its time. If you look over, it was like a mutant creature from a horror movie. It looks like a shark with a terrifying buzzsaw in its jaw. Its bite was as strong as a modern crocodile's.

How could such a bizarre jaw work? The angle of its mouth was bigger than a great white shark's. Teeth pushed the prey deep inside; the jagged spiral was forced into a notch in the upper jaw. Prey was sliced into. No less frightening was its size—twice as long as a great white. It had fewer fins and a narrower body.

Don't get close to these blades; they're four inches long and angled backwards. New teeth pushed older ones deep into the whirling rotations in the jaw. Teen monsters had two rotations; adults had four. Circles of flesh ripping, Chalmers... More than 150 of the fossils have been found.

The odd shape mystified scientists for over a century. The Gila Capri on went extinct long ago, but beware the curse of the buzzsaw killer. It's always wise to play it safe in the water. [Music]

Morgan Freeman Decodes the Mark of the Beast | The Story of God

COVID-19, Humans, and Wildlife: What Do We Know? | National Geographic

View All

Sine and Cosine come from circles

Now I’m going to clear off the screen here, and we’re going to talk about the shape of the sign function. Let’s do that. This is a plot of the sign function, where the angle Theta—this is the Theta axis in this plot—where Theta has been plotted out on a s…

Wait have I just been attacked? What do I do now?

All right, Grace. So ideally we can recognize when we are attacked, but let’s say we begin to fall for it. Let’s say there’s a phishing attack and we go, we click really fast cause we’re all panicked. We type in our password and they’re like, oh wait, I t…

The Sea Otter's Enchanted Forest | America's National Parks

Just offshore, the shallow coastal waters are also a refuge for marine mammals, such as the sea lions that hang out on the rocks or hunt beneath the sea. Here, in their own enchanted forest, the kelp beds are several stories deep. [Music] There are seals…

YOU Own the Moon. And Mars. And Venus. #kurzgesagt #shorts

You own the moon and Mars and everything else in space, really. Call a space lawyer; they’ll tell you about the Outer Space Treaty. It was born from the Cold War when countries were racing to space. It forbids any of them from taking over celestial bodies…

Strategies for multiplying multi digit decimals

So in this video, we’re gonna try to think of ways to compute what 31.2 times 19 is. There are multiple ways to approach this, but like always, try to pause this video and see if you can work through this on your own. All right, now let’s do this togethe…

Civil society | Citizenship | High school civics | Khan Academy

Civil society is one of those terms that you might hear in a politician’s speech, maybe in a line about the importance of maintaining a strong relationship between the government and civil society. But what does it actually mean? A society that’s civilize…

Ancient Predator Had a Killer Jaw | National Geographic

More Articles