In the photo: a man tags wild sharks with his bare hands

Evans Boden photographed one 520-pound shark tagged with a satellite marker

Man attached tags to wild sharks with bare hands to continue studying sea creatures.

Ocean expedition leader Evans Boden, 35, from Paris, launched a mission to tag three Mako sharks to observe their behavior and record how they fared in their natural habitat.

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A photographer took pictures of one 520-pound shark tagged with a satellite marker.

In another photo, Mr. Boden grabs the fin of a nine-foot shark with his bare hands.

Mr. Boden and his six-person crew set off from La Paz, Mexico, and headed out into the ocean, where they searched for Mako sharks so they could catch, tag, and release them back into the ocean.

By placing markers on the sharks, they could observe their behavior for at least a year.