Luis Sanchez

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Engineers Create A Titanium Rib Cage Worthy Of Wolverine

At first glance, the metallic device almost looks like a high-tech bike pedal. Or maybe the latest cooking gadget for zesting lemons. Or, perhaps, it's a secret weapon for X-Men superhero Wolverine.<p>But look again.<p>Doctors in Spain say this is the world's first 3-D-printed rib cage, made entirely …

12 Theories of How We Became Human, and Why They’re All Wrong

Killers? Hippies? Toolmakers? Chefs? Scientists have trouble agreeing on the essence of humanity—and when and how we acquired it.<p>What a piece of work is man! Everyone agrees on that much. But what exactly is it about <i>Homo sapiens</i> that makes us unique among animals, let alone apes, and when and how …

New Species On Human Family Tree Discovered In Ancient Mass Grave

Homo naledi had small brains but human-like traits, upending the fossil record<p>In September of 2013, two cave explorers, on a routine exploration in South Africa happened upon a collection of fossils that would soon question our current understanding of humans’ ancestral history. While probing a …

Anthropology

Fossil “River Dolphin” Lived Out at Sea

The tale of how whales walked into the seas is one of the most celebrated in evolutionary biology. Even our own fossil backstory, of arboreal apes that eventually began to walk upright, seems relatively unimpressive compared to how little mammals that scampered along the beach on four legs began a …

6 vegetarian animals we never suspected would have a taste for blood

Not so cute and cuddly after all<p>Lorikeets are cute, colorful parrots that typically eat pollen and nectar. But some populations have also developed a taste for flesh. The species’ carnal appetite was discovered when a birdwatcher in Australia set out minced meat for omnivorous and carnivorous …