5K views · 60 reactions | ⏳ It’s GIF CHALLENGE time! ⏳ This week's episode gets you up close to Triops, or tadpole shrimp! Neither tadpoles, nor shrimp戀, these ancient aquatic creatures have a habit of popping up where you'd least expect. They also have a special organ -- which we don't -- that helps them know which way is up. What is the *scientific name* for that organ? Ready, set – GO! ⏲️ | Deep Look • PBS | Facebook