How do you tag the world’s biggest fish? Fins and flexibility.

What does it take to swim up to the world’s largest fish and stick a monitoring tag on it? The patience of a saint, the flexibility of a bendy straw, and the endurance of an Olympic swimmer.  “Even though the shark looks like it’s swimming slowly, it’s definitely a lot faster than you are,” marine biologist and ace whale shark tagger Jaida Elcock, tells Popular Science. “Even if you have the best fins, you’ve got to have great endurance. It&rsq