When Giant Scorpions Swarmed the Seas
Season 2 Episode 17 | 11m 38s Video has closed captioning.
Sea scorpions thrived for 200 million years, coming in a wide variety of shapes and sizes. Over time, they developed a number of adaptations--from crushing claws to flattened tails for swimming. And some of them adapted by getting so big that they still hold the record as the largest arthropods of all time.
Problems Playing Video? | Closed Captioning