Our Daily Planet: Shipwreck Ghost Hunters and Arkansas Earthquakes

Each weekday morning, OurAmazingPlanet takes the pulse of the Earth, reporting on natural phenomena and exploration news from around the globe.

Shipwreck Ghost Hunters: Archaeologists talk about their work on what may be the oldest shipwreck ever discovered off the North Carolina coast. [Related: Journey of North Carolina's Oldest Shipwreck ]

Curious Quakes: Recent earthquakes in Arkansas have residents on edge. The hundreds of small earthquakes over the past several months have focused national attention on the town of Greenbrier, where the largest quake to hit the state in 35 years struck on Sunday.

Turtle Power: Take a look at the Vancouver Aquarium's green sea turtles through the years. [Related: Shell Shock: 25 Turtle Species in Terrible Trouble ]

Aialik the Otter: Six months ago, veterinarians at the Oregon Aquarium performed ground-breaking bladder surgery on an otter rescued from Alaska. Today he's recovering better than anyone dreamed.

Previously on Our Daily Planet: Deadly Weather and Beserk Mission

Reach OurAmazingPlanet staff writer Brett Israel at bisrael@techmedianetwork.com. Follow him on Twitter @btisrael.

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Brett Israel was a staff writer for Live Science with a focus on environmental issues. He holds a bachelor’s degree in biochemistry and molecular biology from The University of Georgia, a master’s degree in journalism from New York University, and has studied doctorate-level biochemistry at Emory University.