Tracking Trout With the Fish Whisperer | That’s Amazing

When it comes to catching fish in a stream, Nevadan trout angler Steve MacMillan knows no bounds. He’ll climb any mountain, tread any path and wade through any churning body of water in pursuit of his quarry. But MacMillan is not just a fisherman. He’s essentially performing the work of a biologist as a volunteer. By diligently documenting the location, air and stream temperature, fish species, weight and length of every catch, MacMillan gives scientists an invaluable dataset to track and preserve fish populations where he goes.

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This story is a part of our Planet Earth series. From mammals to insects and birds to reptiles, we share this great big world with all manner of creatures, large and small. Come with us to faraway places as we explore our great big planet and meet some of its wildest inhabitants.

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