PENSACOLA, Fla. — Name something you don't want to see when you're on the beach, and a shark would have to be among the top responses.

But that's what visitors to Navarre Beach near Pensacola, Fla., saw this week. 

Navarre Beach Fire Rescue posted photos of what they said was a 13-foot hammerhead shark in the surf.

According to National Geographic, hammerhead sharks can range from 13 to 20 feet and weigh up to 1,000 pounds. They are found worldwide.

Their oddly shaped heads improve their hunting ability -- their wide-set eyes improve their vision and they have sensory organs spread on their wide head.

There have been few attacks on humans, but they could attack if provoked,  National Geographic said. 

What other people are reading right now:

►Make it easy to keep up-to-date with more stories like this. Download the 10News app now.

Have a news tip? Email desk@wtsp.com, or visit our Facebook page or Twitter feed.