Why Goldfish Grow Large in the Wild
Your innocent pet goldfish has a secret. If it ever goes wild, it could become a giant predator that threatens North America's lakes. But how does an adorable, shiny beacon of cuteness become such a feared invasive species? And what is being done to stop the goldfish already wreaking havoc in our lakes? This episode explores the battle against the giant goldfish.
Check out the Cootes Paradise Fishway.
From apex predators to the planet's strangest creatures, Animalogic delves 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 on TikTok, Facebook, and Instagram.
Support Animalogic through Merch, Member perks, and Patreon.
More from Underknown: What If, Aperture, and How to Survive.
Brand partnerships & collaborations: contact@underknown.com
Produced by Underknown.
#goldfish, #invasive species, #lakes, #wildlife, #nature, #environmental impact, #animal behavior, #selective breeding, #survival adaptations, #community involvement
Timeline
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