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Scuba divers have discovered a primeval underwater forest off the coast of Alabama.
The Bald Cypress forest was buried under ocean sediments, protected in an oxygen-free environment for more than 50,000 years, but was likely uncovered by Hurricane Katrina in 2005, said Ben Raines, one of the first divers to explore the underwater forest and the executive director of the nonprofit Weeks Bay Foundation, which researches estuaries.
The forest contains trees so well-preserved that when they are cut, they still smell like fresh cypress sap, Raines said.
Closely guarded secret
Raines was talking with a friend who owned a dive shop about a year after Hurricane Katrina. The dive shop owner confided that a local fisherman had found a site teeming with fish and wildlife and suspected that something big was hidden below. The diver went down to explore and found a forest of trees, then told Raines about his stunning find.
But because scuba divers often take artifacts from shipwrecks and other sites, the dive shop owner refused to disclose the location for many years, Raines said.
In 2012, the owner finally revealed the site's location after swearing Raines to secrecy. Raines then did his own dive and discovered a primeval cypress swamp in pristine condition. The forest had become an artificial reef, attracting fish, crustaceans, sea anemones and other underwater life burrowing between the roots of dislodged stumps.
Some of the trees were truly massive, and many logs had fallen over before being covered by ocean sediment. Raines swam the length of the logs.
"Swimming around amidst these stumps and logs, you just feel like you're in this fairy world," Raines told LiveScience's OurAmazingPlanet.
In addition, because Bald Cypress trees can live a thousand years, and there are so many of them, the trees could contain thousands of years of climate history for the region, Harley said..
"These stumps are so big, they're upwards of two meters in diameter — the size of trucks," Harley told OurAmazingPlanet. "They probably contain thousands of growth rings."
The team, which has not yet published their results in a peer-reviewed journal, is currently applying for grants to explore the site more thoroughly. Harley estimates they have just two years.
"The longer this wood sits on the bottom of the ocean, the more marine organisms burrow into the wood, which can create hurdles when we are trying to get radiocarbon dates," Harley said. "It can really make the sample undatable, unusable."