Your innocent pet goldfish has a secret. If it ever were to go wild, it would turn into a giant predator that could destroy North America's lakes. But how does an adorable shiny beacon of cuteness become such a feared invasive species? And what it's being done to stop the goldfish already wreaking havoc in our lakes? This is the battle against the megalodon Goldfish. Learn more about fish! How do they sleep underwater? https://www.youtube.com/watch?v=nnBn_qkn748 00:00 Monstrous Goldfish Are Taking Over 00:49 Size Limits & Feral "Megalodons" 02:37 Nicole Turner on Lake Ontario Giants 03:14 Why Do Wild Goldfish Get So Large? 03:55 Domestication History & Selective Breeding 05:34 What Happens When Goldfish Go Feral? 07:27 The Fishway Barrier at Cootes Paradise 08:34 Natural Predators & Rapid Breeding 10:11 Extreme Survival Adaptations (Torpor & Alcohol) 11:59 Environmental Destruction & "Suck-Spit" Feeding 14:49 How Goldfish Invade & Modern Eradication Methods 16:43 The Traitor Fish Method (Acoustic Telemetry) 18:25 Researching Asexual Reproduction (Clones) 20:09 Community Involvement & Education ("Don't Let It Loose") 22:45 Protecting Our Waterways Check out the Cootes Paradise Fishway: https://www.rbg.ca/stewardship/conservation-and-preservation/fishway/ Examining the nature of the beast. From apex predators to the planet's strangest creatures, Animalogic goes deep into the science, behavior, and biology of the animal kingdom, one species at a time. ───────────────────────────── 📗 GET THE BOOK ───────────────────────────── "Strange Creatures" — animal facts and original illustrations from the Animalogic team: http://bit.ly/animalogicbook ───────────────────────────── JOIN THE COMMUNITY ───────────────────────────── 🎵 TikTok: https://www.tiktok.com/@animalogic 📘 Facebook: https://www.facebook.com/AnimalogicShow 📸 Instagram: https://www.instagram.com/animalogicshow/ ───────────────────────────── SUPPORT ANIMALOGIC ───────────────────────────── 👕 Merch: https://bit.ly/3SXGrXL ❤️ Member perks: https://bit.ly/AnimalogicMembership 🙏 Patreon: https://www.patreon.com/animalogic ───────────────────────────── MORE FROM UNDERKNOWN ───────────────────────────── 🔬 What If – Science Hypotheticals: https://bit.ly/youtube-What-If 🧠 Aperture – Philosophy & Psychology: https://bit.ly/aperture-show 🆘 How to Survive – Survival Science: https://bit.ly/how-to-survive-show ───────────────────────────── 📩 Brand partnerships & collaborations: [email protected] Produced by Underknown: https://underknown.com #goldfish #fish #ocean #sea #animals #wildlife #nature #documentary #naturedocumentary