The MeatEater Podcast Ep. 834: Dr. Crayfish, Fox Collars, and Blue Tarps | MeatEater Radio Live!
Feb 13, 2026
Dr. Zack Graham, ecologist and crayfish author, explains crayfish diversity, burrowing species, threats from invasives and habitat loss, and fishing tips. Emily Davis, PhD student studying wolves, coyotes, and red foxes, describes collaring foxes in Grand Teton research, trapping methods, and memorable field stories. Multiple lively segments include Hot Tips, Price is Right games, and quirky wildlife anecdotes.
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Why Most Crayfish Are In The Eastern US
- The Eastern United States hosts ~70% of the world's crayfish due to ancient Appalachian river fragmentation.
- Zack Graham links long geologic history to exceptional freshwater speciation and biodiversity.
Burrowing Crayfish Create Hidden Habitats
- About 30% of North American crayfish are burrowers that live on land and dig to groundwater.
- These burrows create chimneys and serve as microhabitats used by many other species.
Cave Crayfish Lose Eyes And Color
- Cave-adapted crayfish often lack pigment and eyes, evolving translucent, spider-like forms.
- These adaptations occur in cave systems across Appalachia and the Southeast.
