Greg O’Corry-Crowe

Harbor Branch Oceanographic Institute

A discovery into dolphin genetics may have brought research scientists one step closer to finding out the source of a mysterious animal die-off last year in the troubled Indian River Lagoon.

“Now, I gotta good one for you: if you’re swimming in the water and a fin comes up right by you, how can you tell instantly whether it’s a shark’s fin or a dolphin’s fin,” asked Barry Legé.

The answer? A shark fin is more straight, while a dolphin’s fin is more curved.