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Since 1998, the MarineBio Conservation Society (MarineBio) has been a nonprofit organization driven by passionate volunteers. Our mission is to inspire and educate people around the world about ocean life, marine biology, and the importance of marine conservation. We also promote a shared sense of responsibility—a ‘sea ethic’—that encourages everyone to protect and cherish our oceans. Help us promote conservation and science education to millions every year by buying a t-shirt today.
Under Pressure - Retro Scuba Diving Reef Poster T-Shirt
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Description: A vintage travel-poster escape beneath the waves. A diver drifts weightless past a golden wall of reef fish while a buddy follows below, all rendered in the bold flat style of a classic 1930s WPA park poster. For scuba divers, dive buddies, and anyone whose happy place is twenty feet down. When the pressure up top gets to be too much, this is the good kind.

Tags: dive buddy, freediving, marine biology, ocean, scuba diver
Under Pressure - Retro Coral Reef Dive Art T-Shirt
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Description: A vintage travel-poster tribute to the quiet world below the surface. A school of reef fish drifts through sunlit water past coral and sponges, rendered in the bold flat style of a classic 1930s WPA park poster. For divers, snorkelers, and anyone who finds their calm underwater. Sometimes the best way to handle the pressure up here is to go feel it down there.

Tags: coral reef, freediving, marine biology, ocean, scuba diving
Save the Nudis — Colorful Nudibranch Reef T-Shirt
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Description: A vibrant reef packed with nudibranchs in every color, topped with the playful "Save the Nudis" rallying cry. A bright, fun way for sea slug fans to support ocean conservation.

Tags: dive, diving, marine conservation, nudi, ocean
Slow and Steady Saves the Sea — MarineBio Sea Turtle T-Shirt
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Description: A cheerful green sea turtle swims through bubbly blue water beneath the MarineBio name and the playful slogan "Slow and Steady Saves the Sea." A fun, upbeat way to support sea turtle conservation.

Tags: green sea turtle, marine conservation, ocean conservation, save the ocean, sea
Sea Turtles Save Them — MarineBio Retro Sunset T-Shirt
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Description: A green sea turtle glides across a warm retro sunset in this vintage-styled design, topped with the MarineBio name and a "Save Them" call to action. Support sea turtle conservation and healthy oceans.

Tags: beach, green sea turtle, ocean, retro sunset, save the turtles
Protect Sea Turtles — MarineBio Green Sea Turtle T-Shirt
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Description: A green sea turtle glides through deep blue water beneath the MarineBio Conservation Society name and a "Protect Sea Turtles" call to action. Wear it to support sea turtle conservation and healthy oceans.

Tags: green sea turtle, marine conservation, marine life, ocean, ocean conservation
Save the Sea Birds — Puffins Vintage Poster T-Shirt
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Description: Two puffins share a cliffside at sunset while an albatross glides overhead, in a warm vintage-poster style. Support seabird conservation and the coastal wildlife worth protecting.

Tags: albatross, bird, bird conservation, marine life, ocean conservation
Save the Sea Birds — Puffin & Albatross Vintage T-Shirt
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Description: Two puffins flank a gliding albatross in a rugged vintage crest. A retro-styled tribute to seabird conservation and the wild coasts they call home.

Tags: albatross, bird, bird conservation, marine life, ocean conservation
Save the Whales — Whale Tail Ocean Photo T-Shirt
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Description: A humpback's tail crashes through churning surf in this bold, dramatic ocean design. Support whale conservation and help protect these gentle giants of the sea.

Tags: humpback whale, marine conservation, ocean conservation, save the whales, whale lover
Save the Whales — Whale Tail Retro Sunset T-Shirt
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Description: A humpback tail rises against a palm-framed sunset in warm, vintage travel-poster style. Support whale conservation and wear your love for these ocean giants.

Tags: humpback whale, marine conservation, ocean conservation, ocean waves, save the whales
Save the Fishes — Retro Sunset T-Shirt
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Description: A school of fish rides a cresting wave beneath a palm-framed sunset in this warm, retro travel-poster style. A breezy tribute to ocean conservation and the marine life worth protecting.

Tags: fish, fish conservation, fishing, marine conservation, marine life
Save the Fishes — School of Fish Vintage T-Shirt
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Description: A school of fish rendered in a rugged vintage crest with a bold "Save the Fishes" banner. A retro-styled tribute to ocean conservation and the marine life worth protecting.

Tags: fish, fish conservation, fishing, marine conservation, marine life
Save the Fishes — School of Fish (Ocean Photo) T-Shirt
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Description: A shimmering school of fish streams through sunlit blue water above a bold "Save the Fishes" call to action. Support ocean conservation and help protect the fish that keep our seas alive.

Tags: fish conservation, fishing, marine conservation, marine life, marinebio
Save Great White Sharks — Vintage Shark Design T-Shirt

Description: A great white shark framed in a rugged vintage-style emblem with a bold "Save Great White Sharks" call to action. A retro nod to shark conservation and the fight to protect these apex predators.

Tags: great white, marine conservation, ocean, save the sharks, shark conservation
Save Great White Sharks — Support Shark Conservation T-Shirt

Description: A powerful great white shark surges through sunlit water in this striking photo-real design. Support shark conservation and help protect one of the ocean's most misunderstood predators.

Tags: great white, marine conservation, marine life, ocean, ocean conservation
Save the Smart Ones — Octopus Ocean Conservation T-Shirt
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Description: A bold red octopus rises from the waves above the clever slogan "Save the Smart Ones." A nod to octopus intelligence and a reminder that these brilliant creatures need healthy oceans to thrive.

Tags: cep, marine conservation, marine life, ocean conservation, octopus art
Protect What's Wild — Octopus Ocean Conservation T-Shirt
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Description: A gritty, hand-drawn octopus bursts across this bold design paired with a "Protect What's Wild" rallying cry. Support ocean conservation and wear your commitment to keeping marine life wild and thriving.

Tags: cephalopod, marine conservation, ocean, ocean conservation, octopus
MarineBio Octopus Seal — Protect Our Ocean T-Shirt
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Description: A bold circular emblem featuring a striking red octopus at its center, framed by the MarineBio Conservation Society name and the rallying call to "Protect Our Ocean." Wear it to show your support for marine life and healthy seas.

Tags: cephalopod, marine conservation, marinebio, ocean, ocean conservation
Kraken for Conservation — Vintage Octopus T-Shirt
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Description: A vintage-style giant Pacific octopus featuring a fierce red kraken rising from the waves, celebrating marine biology and ocean conservation. Support MarineBio Conservation Society and wear your love for the deep.

Tags: cephalopod, marine conservation, ocean, ocean conservation, octopus
Long Walk, Short Pier T-Shirt
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Description: A classic made by one of our more sarcastic staff members.

Tags: lake, ocean, pier, sea
MarineBio Seal T-Shirt
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Description: Show your support for MarineBio with our seal we wear on expeditions, etc.

Tags: anchor, marine life
Let's Get Nautical T-Shirt
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Description: by MarineBio

Tags: marine biology, marine life, ocean life
Emporer Butterflyfish (juvenile) T-Shirt
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Description: The emperor angelfish (Pomacanthus imperator) is a species of marine angelfish. It is a reef-associated fish, native to the Indian and Pacific Oceans.

Tags: aquarium, emperor, fish, marine life, ocean
Big Squid T-Shirt
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Description: Be different, be a squid. We love squid!

Tags: ocean, sea, tentacles
Wild Not Captive T-Shirt
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Description: Dolphins and orca deserve to live free!

Tags: captivity, dolphins, killer whale, ocean, orca
VOTE BLUE! T-Shirt
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Description: Vote Blue for the Ocean (and Cthulhu)! We need the ocean to survive, get involved and vote for those that protect all life.

Tags: democrat, election, political
Sea Turtle by MarineBio T-Shirt
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Description: We love sea turtles!

Tags: ocean, sea, turtle, turtle lover
Cthulhu MarineBio T-Shirt
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Description: Cthulhu watches all. Cthulhu is a fictional cosmic entity created by writer H. P. Lovecraft. It was introduced in his short story "The Call of Cthulhu", published by the American pulp magazine Weird Tales in 1928.

Tags: call of cthulhu, hp lovecraft, lovecraft, octopus, tentacles
INDONESIA EXPEDITION T-Shirt
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Description: Wildlife from our last Indonesian Expedition.

Tags: bunaken, coral triangle, diver, diving, lembeh strait
SAVE SHARKS! T-Shirt
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Description: Every year, more than 100 million sharks continue to die due to human activity. Your purchase directly supports our work to help the public understand, restore and protect ocean life.

Tags: conservation, jaws, nature, ocean, oceanic
MarineBio Conservation Society GPO T-Shirt
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Description: Wear this t-shirt if you like Giant Pacific Octopuses (and MarineBio)!

Tags: deep sea, marine biologist, marine biology, marine life, ocean
Marine Biologist In Training T-Shirt

Description: This is the t-shirt for the newest Biologist and lover of all things Ocean in your family. Your purchase directly supports our work to help the public understand, restore and protect ocean life.

Tags: marine, marine biology, marine life, ocean, science
SAVE WHALES T-Shirt
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Description: At least 300,000 whales die each year due to ship strikes and commercial fishing. Your purchase directly supports our work to help the public understand, restore and protect ocean life.

Tags: breach, conservation, endangered, environment, humpback
SAVE WHALES T-Shirt
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Description: At least 300,000 whales die each year due to ship strikes and commercial fishing. Your purchase directly supports our work to help the public understand, restore and protect ocean life.

Tags: conservation, endangered, environment, humpback whale, nature
SAVE SHARKS! T-Shirt
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Description: Every year, more than 100 million sharks continue to die due to human activity. Your purchase directly supports our work to help the public understand, restore and protect ocean life.

Tags: conservation, endangered, environment, hammerhead, hammerhead shark
SAVE SHARKS! T-Shirt
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Description: Every year, more than 100 million sharks continue to die due to human activity. Your purchase directly supports our work to help the public understand, restore and protect ocean life.

Tags: conservation, endangered, environment, great white, great white shark

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