Dunkleosteus "The Dunk" T-Shirt Size:L and warm earth tones

and warm earth tones

retro-inspired Stegosaurus skeleton with an electrified thagomizer motif

Set on a deep black background

Each shirt purchase not only celebrates natural history but also gives back to the planet—because every shirt plants a tree

Wade into the cool serenity of mountain rivers with this vintage-style watercolor depiction of two Lontra canadensis—the North American river otter—framed by conifer forests and snow-dusted peaks of a boreal alpine landscape

Dunkleosteus "The Dunk" T-Shirt Size:L and warm earth tonesThis retro, distressed design features the fearsome Dunkleosteus bursting from Devonian seas in a dramatic splash of deep ocean blues, seafoam whites, and earthy gray tones against a bold black backdrop. Known as one of the apex predators of the Late Devonian Period, Dunkleosteus is accurately illustrated with its armored head plates and powerful jaw, celebrating the raw power of prehistoric marine life. The vintage aesthetic and textured print give