Scientists tracking a pregnant shark noticed something wasn't right. Now they may have finally closed the case.
In what can only be described as a real-life underwater whodunnit, scientists think they have identified the primary suspects involved in the disappearance of a pregnant porbeagle shark that was being tracked off the coast of Bermuda.The culprit? Either a great white shark or, though less likely, a shortfin mako. If confirmed, this would represent the first recorded case of shark-on-shark violence with species of this size.
The researchers equipped the shark with two satellite tags: a fin-mount satellite transmitter to track its location and a pop-off satellite archival tag to monitor depth and temperature.After its release, the shark was tracked for a total of 158 days, during which it initially exhibited typical porbeagle behavior, cruising at depths between 300 and 2,600 feet depending on the time of day. The temperature recorded by the tag flicked between 44 and 74°F.
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