Tyrannosaurus Tooth Navy Petty Officer 3rd Class Billy Gibson cleans a child’s teeth at a Continuing Promise 2017 medical site in Mayapo, Colombia, March 26, 2017. Continuing Promise is a U.S. Southern Command-sponsored deployment that includes humanitarian assistance; training engagements; and medical, dental and veterinary support. Navy photo by Petty Officer 2nd Class Brittney Cannady SHARE: Download: Full Size (1.14 MB) Credit: PO2 Brittney Cannady VIRIN: 170326-N-YM856-031C.JPG Photo Gallery