Finding scat samples in the middle of a Costa Rican forest is neither a glamorous nor easy feat, but a Labrador Retriever named Tigre jumped at the opportunity to help.
Zebra and quagga mussels can devastate an ecosystem, and Yellowstone National Park is doing everything it can to keep them out. Most recently, that includes harnessing the power of a dog's snout.
Lily is a golden retriever from Georgia. Seamus is a border collie from Montana. Together, they are leading a Working Dogs for Conservation team to eradicate an invasive weed...