Natural history is full of living things that were long thought to have gone extinct, only to show up alive and well. Paleontologists called these organisms Lazarus taxa and many of them vanished 500 million years ago at the end of the Cambrian Period. But did they really vanish? Host Hank Green tells their story in this edition of PBS Eons.
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Our early ancestors were rightfully celebrated as efficient hunter-gatherers, but further research in the 1960s and 1970s revealed that they might have been prey, too. After uncovering mangled fossils with gouges and punctures in their skulls, anthropologists realized that hominids were not only successful hunters, but also were hunted by carnivores of the period. PBS Eons takes a closer look at the discovery.
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