Between 2001 and 2021, researchers logged more than 15,000 hours of underwater monitoring in the waters of Raja Ampat, Indonesia — one of the most biodiverse marine environments on Earth. In all that time, they spotted exactly three zebra sharks. The species was, for all practical purposes, gone. Functionally extinct in a sea famous for everything that still lives.
Now, 57 of them are back.
In a landmark milestone for the ReShark StAR Project — a coalition of nearly 80 aquariums, universities, and conservation organisations across the globe — the 57th zebra shark was released into Raja Ampat's protected waters in February 2026. The release was led by an all-women ReShark team on Kri Island, Southwest Papua — a detail that felt quietly right for a project working to restore what had been taken.
"Zebra sharks are functionally extinct in Raja Ampat. The goal of this project is to restore a healthy, breeding population — and we're proving it's possible." — ReShark StAR Project
**From Three Sightings to Fifty-Seven Sharks**
The zebra shark (*Stegostoma tigrinum*), sometimes called the Indo-Pacific leopard shark for its spotted juvenile colouring, was once a common sight across the coral-rich shallows of Southeast Asia. Decades of blast fishing and targeted hunting reduced the population in Raja Ampat to almost nothing — a trajectory repeated across much of the species' range.
The StAR Project — Stegostoma tigrinum Augmentation and Recovery — launched in 2020 with an audacious aim: release 500 zebra shark pups into Raja Ampat by 2032, establishing a genetically diverse, self-sustaining population.
The mechanics of the project are extraordinary. Partner aquariums in Australia and the United States contribute genetically suitable zebra shark eggs. The eggs are transported to the Raja Ampat Research and Conservation Center on Kri Island, where local aquarist teams hatch and raise them in nursery pens. The pups learn to forage, develop wild instincts, and are fitted with acoustic tags. At 7–8 months old — around 100 cm long — they're released.
**80 Aquariums, One Ocean**
The StAR Project represents something genuinely new in conservation: a coordinated global network of zoos and aquariums acting as a breeding bank for wild reintroduction. Nearly 80 institutions have contributed expertise, eggs, and funding to restore a species to a sea most of them will never visit.
Conservation International and its Indonesian partner Konservasi Indonesia provide the local foundation — community relationships built over years, and Marine Protected Areas that give released sharks a fighting chance. Post-release monitoring combines acoustic telemetry tags and citizen science reporting from divers and fishers across the archipelago.
**Why Raja Ampat**
Raja Ampat — a remote archipelago in West Papua — is often described as the most biodiverse marine environment on the planet. Its reefs host more species of fish, coral, and invertebrates than almost anywhere else on Earth. It is precisely this richness that makes the zebra shark's disappearance so jarring — and its return so significant.
The region now has a robust network of no-take Marine Protected Areas and active enforcement by local rangers. The conditions that drove the shark to functional extinction — blast fishing, unregulated hunting — have been substantially reduced. The sea is ready.
**An "Adopt a Shark" Model for Sustainability**
Beyond reintroduction, the StAR Project is building financial sustainability through an "Adopt a Zebra Shark" programme, connecting ocean lovers worldwide with individual sharks. Adopters receive updates on their shark's post-release tracking data — making the recovery intimate and personal.
The project is also pursuing a ministerial decree for full legal protection of *Stegostoma tigrinum* in Indonesian waters — a policy change that could protect sharks far beyond the boundaries of any single programme.
"The first pup arrived in 2022. The 57th swam free in 2026. By 2032, we aim to have 500. This is what taking the long view looks like." — ReShark StAR Project
**The Math of Hope**
Fifty-seven sharks doesn't sound like many when you think about an ocean. But consider the baseline: three confirmed sightings across fifteen years and fifteen thousand hours. Fifty-seven is an incalculable improvement. And those 57 sharks carry tags. They're being tracked. Scientists know where they go, what they eat, whether they survive. Every one of them is data. Every one of them is a seed.
The all-women team that oversaw release number 57 on Kri Island didn't just release a shark. They released a proof of concept: that functional extinction isn't always the end of the story. That species can be brought back. That a global coalition of people who care — aquarium staff in Ohio, marine biologists in Perth, local rangers in Papua — can accomplish what no single institution could.
🦈 Number 57 is swimming free in Raja Ampat right now. Five hundred is the goal. The ocean is waiting.
**Sources:** ReShark StAR Project · Antara News · Conservation International · Point Defiance Zoo & Aquarium
