A stingray in a North Carolina aquarium became pregnant without a male in the tank. Scientists believe that a male shark could be the father. AdvertisementStaff at an aquarium in North Carolina were left confused after a stingray became pregnant despite there not being a male in her tank. Scientists have a few theories about how this might have happened — and one involves a male shark. The Aquarium and Shark Lab by Team Ecco in Hendersonville was initially concerned that the stingray had cancer when she began to swell.

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Persons: —, April Smith, ” Smith, Smith Organizations: Service, Staff, Lab, Ecco Locations: North Carolina, Hendersonville