This is the first two-headed bull shark ever seen
This shark embryo, found by a fisherman off the coast of Florida, is the first two-headed bull shark science has ever seen. This is almost certainly just one of those things that happens, not a result of pollution or the BP spill or whatever, but feel free to freak out, as it is probably a sign of the End Times anyway.
(Via @WhySharksMatter on Twitter.)
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