Interview with National Geographic Photographer Brian Skerry on saving the ocean and what it feels like to be honored as a Sea Hero.

Spearfishing isn't just a sport, but also a way of life for spear fisherman like Antonio Negron who catches just enough to survive and eat.

Watch underwater photographer Thomas Peschak on TED Talks as he discusses his work and marine conservation.

Want to see sea turtles while scuba diving or snorkeling? Go to Florida, Cayman Islands and Australia! See underwater photos of these amazing animals.

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Video shows hundreds of manatees flocking to Three Sisters Springs in Crystal River Florida — it's a beautiful sight!

Despite the change in endangerment status, manatees in Florida springs and coastal waters need our help. Here's how you can take action to save these creatures!

Do you want to help save manta rays around the world? Take action with the Manta Trust to help conserve our ocean planet!

Founder of Ocean Defenders Alliance, Kurt Lieber helped establish California's MPA network, which protects 16 percent of state waters.