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Marine Keystone Species

Winners of the 2025 Science Without Borders® Challenge

The 2025 Science Without Borders® Challenge invited young artists from across the globe to create artwork highlighting species that play a critical role in maintaining the structure and health of ocean ecosystems with the theme, “Marine Keystone Species.” This theme encouraged students to illustrate the critical roles these species play in shaping and sustaining healthy ocean ecosystems.

We were amazed by the response—more than 1,300 entries from 75 countries poured in—each piece a unique interpretation of a marine keystone species, from sea otters and mangroves to corals and sharks. These species may not always be the most numerous or well-known, but they have an outsized impact on their environment. Their presence helps maintain biodiversity, balance food webs, and support ecosystem resilience. If a keystone species is removed, the entire ecosystem could shift dramatically or collapse. Through their art, students explored these complex ecological relationships and made a compelling case for ocean conservation.

These stunning artworks showcase diverse marine life, from foundational species at the base of the food web and grazers to apex predators and ecosystem engineers. Prepare to be inspired by their imaginative interpretations and powerful messages about protecting the species that keep our ocean in balance. We are proud to showcase the 2025 Challenge winners, whose art encourages us to appreciate the species that keep our oceans healthy and in balance.

Winners & Finalists Ages 11-14:

First Place (11-14): "Wonders of the Twilight Zone" by Claire Kim, Age 12, Canada

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Artist's Statement: Under the deep sea where it is a dark world full of mysteries, there are weird creatures we have not seen. When we think of the deep dark parts of the ocean, the creatures that come to mind usually look unattractive, bizarre, or very unsettling. However deep down in the twilight zone, it is like various colours of fireworks. You can find life with vibrant pinks and blues like a whole new dimension with its own beauty and mysteries. Some even carry light and grace upon seeing them. When a light is lit in the twilight zone, we can see the many charmers who have been hiding in the dark. The deep sea is not all about the big, scary, ugly, or distorted looking creatures, it is about a magical world full of beauty and mesmerizing sights to behold.

Winners & Finalists Ages 15-19:

"The Mystery of Basket Stars" by Heather Choi, Age 16, United States of America

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Artist's Statement: When we are asked to think of a starfish, an image of a five-armed thick and spiky figure forms in our mind. But did you know that this starfish can have dozens of arms? This mysterious and almost alien-like starfish is called the basket star, that unveils a hidden world beyond our perception. What sets the basket star part is its distinctive appearance and remarkable behavior. Unlike traditional starfish, with five arms, the basket star has a mesmerizing array of long, slender, and highly flexible arms that radiate outwards from a central disc. These arms can extend to impressive lengths spanning up to half a meter and are adorned with intricate branching patterns resembling a delicate basket weave. In addition, the basket star is also known for its ability to thrive in extreme deep environments, often found at depths of several hundred to several thousand meters below the ocean surface.

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