Whale shark researchers have marked International Whale Shark Day by solving a long-standing mystery about where the world's largest fish go during the Australian spring and summer.
Researchers are planning to tag two of Ningaloo Reef's most famous whale sharks - Stumpy and Zorro - in a bid to discover where the ocean giants go to mate.
Researchers from The University of Western Australia and the Australian Institute of Marine Science (AIMS) have raised concerns about the whereabouts of the world's biggest whale sharks after finding that the largest sharks observed in recent years were smaller than those recorded more than a decade ago.
Researchers from The University of Western Australia and the Australian Institute of Marine Science (AIMS) have raised concerns about the whereabouts of the world's biggest whale sharks after finding that the largest sharks observed in recent years were smaller than those recorded more than a decade ago.