Newly Discovered African Titanosaur Had a Distinctly Heart-Shaped Tailbone

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Titanosaurs were the giants of the giants—four-legged behemoths that stomped around Cretaceous South America and Africa 100 million years ago. The discovery of a previously unknown titanosaur in Tanzania with a unique heart-shaped tailbone is adding to our knowledge of these enigmatic beasts, and how they lived and…

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https://gizmodo.com/newly-discovered-african-titanosaur-had-a-distinctly-he-1832595617

Rare Fossil of Triassic Reptile Discovered in Antarctica

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The fossilized remains of an early reptile dating back some 250 million years have been uncovered in the unlikeliest of places: Antarctica. The discovery shows how wildlife recovered after the worst mass extinction in our planet’s history, and how Antarctica once hosted an ecosystem unlike any other.

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https://gizmodo.com/rare-fossil-of-triassic-reptile-discovered-in-antarctic-1832208515

Neanderthals and Denisovans Shared a Siberian Cave for Thousands of Years, New Research Suggests

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Denisova cave in southern Siberia was home to Neanderthals and Denisovans for thousands of years, but questions remain about the timing of their stay. A pair of new studies traces the history of archaic human occupation at the site, showing who lived there and when—including a possible era during which the two…

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https://gizmodo.com/neanderthals-and-denisovans-shared-a-siberian-cave-for-1832195445

Ancient Shark With Spaceship-Shaped Teeth Named After Vintage Video Game

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A newly described freshwater shark from the Cretaceous Period had teeth that resembled the iconic Galaga video game spacefighter. Remarkably, the remains of this shark were found in the same pile of debris that contained Sue the T. rex—the largest and most complete fossil of the species ever found.

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https://gizmodo.com/ancient-shark-with-spaceship-shaped-teeth-named-after-v-1831931460

New Evidence Suggests Dogs Reached North America 10,000 Years Ago

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The skeletal remains of three ancient dogs found buried in Illinois now represent the earliest evidence for the presence of domesticated dogs in the Americas. It’s also the oldest known intentional burial of individual canines in the global archaeological record.

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https://gizmodo.com/new-evidence-suggests-dogs-reached-north-america-10-000-1831576469

Extinct ‘Siberian Unicorns’ Walked the Earth Alongside Modern Humans

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Weighing up to 7,700 pounds, Elasmotherium sibiricum—an extinct hairy rhino popularly known as the “Siberian unicorn”—was thought to have disappeared as long as 200,000 years ago. An updated fossil analysis suggests this formidable species was still around some 39,000 years ago, and that Ice Age conditions, not human…

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https://gizmodo.com/extinct-siberian-unicorns-walked-the-earth-alongside-mo-1830682343