Full Breakdown
Diver's Encounter with a 9-Foot Galápagos Shark: A Deep-Sea Incident
10/4/2025, 8:14:46 PM
Overview of the Incident
Dr. Mauricio Hoyos, a 48-year-old marine biologist and head of the Mexico-based conservation group Pelagios Kakunjá, experienced a life-threatening encounter with a 9-foot Galápagos shark while conducting research off the coast of Cocos Island, Costa Rica. The incident occurred on September 26, 2023, during a research expedition aimed at studying shark migration patterns and assessing the need for conservation measures against commercial fishing.
Details of the Attack
On the sixth day of the expedition, Hoyos descended to a depth of 123 feet to tag a shark. After successfully tagging the shark in its dorsal fin, it unexpectedly lunged at him, clamping its jaws around his head. Hoyos described the moment as happening "in less than a second," noting that he heard a cracking noise, which was merely the pressure from his scuba suit. The shark released him after realizing it had bitten him, leaving him with 27 puncture wounds on his jaw, face, and scalp.
Medical Response and Recovery
Following the attack, Hoyos surfaced and was assisted by his team, who rushed him to Cocos Island for initial medical treatment. He was later transported to mainland Costa Rica, where he received stitches and awaited surgery for his injuries. Despite the severity of the attack, Hoyos expressed understanding towards the shark's behavior, suggesting it was a defensive reaction to being startled.
Insights from Experts
Dr. Alex Antoniou, director of Fins Attached Marine Research and Conservation, commented on Hoyos's calm demeanor during the incident, stating, "How he responded was probably a lot different from a normal diver." Antoniou emphasized the rarity of such incidents, highlighting Hoyos's extensive experience in shark conservation. Hoyos himself remarked, "It was a defensive bite. She wanted me to stay away from her personal space... It was not her fault."
Context of Shark Attacks
Cocos Island, a UNESCO World Heritage Site, has a history of shark encounters, including a fatal attack by a tiger shark in 2017. However, incidents involving Galápagos sharks are extremely rare, making Hoyos's experience particularly notable within the context of marine research and conservation efforts.
Conclusion
Dr. Mauricio Hoyos's encounter with the Galápagos shark underscores the complexities of human interactions with marine wildlife. His commitment to shark conservation remains steadfast, as he continues to advocate for the protection of these creatures, acknowledging the incident as a natural response rather than an act of aggression.
