The Marine Mammal Stranding Center in Brigantine confirmed Sunday that the mammal's carcass was found Saturday night in the Navesink River, near Victory Park in Rumson. It was badly decomposed, meaning it probably died months ago.
The discovery comes less than a week after another dolphin's remains were spotted in the Shrewsbury River.
It's believed both were part of a pod of 16 that spent half of last year in the two rivers, but an official determination has not been made in either case. If they were part of that group, it would mean five pod members have died.
The pod has been at the center of a tug of war between animal rescuers who wanted them removed or coaxed out of the river and back out to sea, and federal wildlife officials, who decided to leave them alone unless they appeared to be in imminent danger.
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