Supported by Emirates Diving Association and local businesses, Divers Down in Dubai is getting ready to host their bi-annual family day in support of Project AWARE's global Finathon®

Which of these two groups do you think would know the whereabouts of sharks better: local dive guides or professional marine biologists?
In a new paper in PLoS ONE, marine researchers in Australia report on the reliability of data collected by experienced SCUBA divers. Can amateurs report observations of sharks accurately?