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Gladys Porter Zoo Pangolin Study

Gladys Porter Zoo Pangolin Study

Zookeeper Hector Guerra holds Baby, the youngest in a group of White-bellied Tree Pangolins, as he speaks with the media at Gladys Porter Zoo on Thursday, May 18, 2017, in Brownsville, Texas. The South Texas zoo is home to seven of the Pangolins, part of a conservation effort to save what is considered the world's most trafficked animal species. (Jason Hoekema/The Brownsville Herald via AP)