Posted by Elizabeth Bacher, Communications, with contributions from Al Kennedy and Chad Harmon, Rhino Keepers Our greater one-horned rhinos—Taj and Glenn. Photo: Jeremy Dwyer-Lindgren/Woodland Park Zoo If you’ve visited our Assam Rhino Reserve recently, you might have noticed something new about Taj and Glenn’s habitat. The ground these 2-ton greater one-horned rhinos walk (and run, and play) on looks a little different than before. But the biggest change is actually beneath the surface. It took more than a year to complete and it has totally transformed the way we care for these amazing animals! The word “substrate” refers to the kind of substance that covers the ground or surface where an animal lives—sort of like flooring. In short, Taj and Glenn have a new “floor” in their habitat. The process to plan and install it was a huge undertaking and the benefits it offers for our rhinos and for their well-being are equally huge. A greater one-horned rhino in Manas National Park, India, wh...