Whale sharks are the largest fish in the ocean, often growing up to 18 meters long and weighing around 14 tons. These giant animals live in warm waters across the globe and are known for swimming slowly and feeding on plankton. Despite their size, scientists have not yet seen where or how whale sharks mate. In February 2025, researchers studied whale sharks near St. Helena, a remote island in the South Atlantic Ocean. This location is unique because adult males and females are seen there in nearly equal numbers, and food does not appear to be the main reason for their visit. Experts believe that the sharks may gather there for reproduction, making it an important place for further research.

Researchers have reported courtship behavior, such as males chasing females and touching their fins. Some local observers even described large sharks thrashing belly to belly, possibly trying to mate, although these events were not recorded on video. Experts explained that understanding where whale sharks mate is essential for protecting the species, which is now endangered. Camera tags have been used to observe the sharks, but they often fall off because the sharks dive more than 2,000 meters deep, beyond the limit of current equipment. Marine scientists remain optimistic that new technology will help solve this enduring mystery. By identifying and safeguarding key breeding areas, conservationists aim to reduce ecological threats and improve the chances of survival for this majestic species, whose global population has been significantly depleted.