A new study is warning that over one-third of all sharks, rays and chimeras are now at risk of extinction caused by overfishing.Read MoreOcean, extinction, IUCN, news, ocean, overfishing, sharks, world wildlife fund, WWFDeeperBlue.com

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New Book by Jeff Milisen: A Field Guide to Blackwater Diving in Hawaii (Second Edition)
The definitive field duid


