Brook trout inspire a level of devotion that few fish can match. In this episode of Doc Talks Fishing, we sit down once again with our good friend and legendary biologist, Rob Swainson to uncover why.

Rob draws on his decades of research to explain what makes brook trout so unique: their reliance on groundwater, their seasonal movements between shallow warming shorelines and deep cold refuges and their incredible ability to adapt to wildly different environments.

Rob tells us why brook trout are the crown jewels of cold water fisheries, offering anglers a deeper understanding of where they live, why they're vulnerable and how respecting their habitat is the key to their future.

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What if we told you that some fish don't actually "get old" — but get better with age? In this jaw-dropping episode of Doc Talks Fishing, Dr. Chris Therrien returns with three more astonishing fish facts that challenge everything we thought we knew about fish and fishing.

Chris fills us in on the unbelievable story of lake trout that show no genetic, physical, or reproductive decline as they age and actually improve over time. You'll learn also why some northern pike abandon freshwater and run to the ocean, feasting on marine prey to grow into true giants.

And just when you think it can't get any wilder, Dr. Therrien introduces us to the bowfin - the fish that outlasted the T-Rex, survived mass extinction, breathes air and still prowls our waters today. If you love science and fishing — or simply enjoy having your mind blown — you won't want to miss this episode.

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We welcome back Dr. Chris Therrien for a jaw-dropping conversation that will change how you look at fish. Did you know that male bluegills will disguise themselves as females to sneak past aggressive males and steal fertilizations? Or that most —maybe even all— of the world record Arctic char caught in the legendary Tree River are likely Dolly Varden trout? Using cutting-edge genetic analysis, traditional ecological knowledge and meticulous field research, scientists have rewritten what we thought we knew about these iconic fish.

But perhaps the most astonishing discovery is Mary Catherine— a tiny 4.6-pound, 25-inch lake trout from Lake Superior that's 62 years old. Yes, a fish old enough to have watched the Leafs' win their last Stanley Cup in 1967. Chris explains the fascinating science behind extreme longevity and why that "small" fish you just caught might actually be the oldest fish in the lake. Whether you're an angler, nature enthusiast or simply someone who loves learning mind-bending fish facts this episode's for you.

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