There's a tug of war happening in the Western United States, and the American bison (or buffalo) is stuck in the middle.

Some are working to increase the animal's numbers -- while others say not so fast. That tension is the jumping off point for a new podcast which debuts February 2nd called Threshold

The series explores deep into the bison's tangled western past -- and it's uncertain future.

Radio journalist Amy Martin is the podcast's creator. She spoke to Colorado Matters host Andrea Dukakis.