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Follow along as biologists track Whooping Cranes at the Aransas National Wildlife Refuge using satellite GPS technology. We go underwater with some Texas game wardens as they learn how they respond to aggressors on the water, rescue people from drowning and stay afloat wearing over 20 pounds of gear. Meet a group of volunteers at Pedernales State Park and find out why they are so incredibly enthusiastic about doing work that can at times be a little mundane.
