The Colorado Kangaroo Ranch started holding kangaroo yoga classes in March. Every weekend, the animals hop around the studio at 4910 Iris Street as a yoga instructor leads guests through various poses. Treats are placed at the end of each yoga mat, enticing the roos to approach and giving participants the chance to pet and feed them. “It’s a special experience,” says Keaton Crawford, co-owner and head roo keeper of the Kangaroo Ranch. “I don’t think I have seen anybody walk out of here without a big smile on their face.” Though yoga classes are the ranch’s main draw, it also offers bottle feeding experiences with baby kangaroos and meet-and-greet events, including recurring visits to retirement communities. Crawford's kangaroos are not rescued; the ranch is a for-profit company, and its kangaroos are purchased from zoological breeders in Texas. Though the species is abundant, Crawford says the ranch carefully selects kangaroo breeders that also work to revitalize vulnerable and end...