We asked our contributors to share their favorite underwater photos showing the transparent and translucent qualities of underwater creatures, and they came back with a range of macro and wide-angle shots featuring a variety of marine life. Here, X-Ray Mag contributors share their selected images from the tropical waters of Palau, the Philippines, Indonesia, Malaysia and Hawaii to the subtropical and temperate waters of Costa Brava in Spain, New Zealand, South Africa, the US East Coast and British Columbia in Canada.