Say SEAS – it’s #WorldSmileDay!! 😁 Swipe to see some of the greatest grins in the ocean 💙 👉 What gives these fish their grinning look? It's because of what they eat! Their unusual teeth or beaks come in handy to crack open the hard shells of crustaceans or scrape algae off coral. 🪸 To learn more facts that will make you smile, visit the link in bio. 📸: Shutterstock