It's World Krill Day: 🦐 Here are 5 krill facts you likely didn't know. ⬇️ 📏 Krill are only around 6cm long, but their role in the Ocean is an important one. 🙌 ✅ They form the base of the food-chain for many Ocean species. For instance, the blue whale - the biggest animal alive - depends on krill for food. Krill super swarms can be seen from space. 🔭 Some swarms stretch on for 20 km. 🚽 Their bathroom activities = nutritious. Seriously. The iron and other nutrients in their faecal pellets hel