497K views · 884 reactions | Explore the world through the lens of National Geographic. With award-winning photography and discoveries that help shape our world. | National Geographic History | Facebook

339K views · 16K reactions | Have sharks really been around longer than the North Star? Conservation scientist and National Geographic Explorer, Arzucan Askin reveals the answer and tells us why sharks are "evolutionary masterpieces" that deserve to be cherished and protected. | National Geographic History | Facebook

For more than half a century, Paranthropus boisei—dubbed “Nutcracker Man”—has challenged scientists with one enduring question: did they make tools? Decades after her grandmother discovered a 1.8-million-year-old skull, National Geographic Explorer Louise Leakey and her team unearthed a 1.5-million-year-old hand from the ancient hominin. The fossil shows a hand capable of a precise, forceful grip—hinting at the potential to craft tools and challenging long-held views of the species. This evidenc