Start your free month of CuriosityStream now by going to and using promo code "TierZoo". You'll get a free Nebula account too! And be sure to check out LegalEagle's video too: Also special thanks to Aquarium Co-Op for letting me use their footage of their Mbu Pufferfish cracking snails and clams! Sea Shanty 2 piano cover by Swampy Songs: