Emergency services were called to reports of a body being found in marshland near the coast.
Crews from Harwich RNLI were called at about 5.30pm on Sunday by the Coastguard, and were requestde to assist officers from Essex Police are reports of a body, on marshes at Stone Point, in Walton Blackwaters.
Once police were on scene officers identified the body as that of a seal.
A spokesman for Essex Police said: "We received a call from a member of the public, reporting the finding of suspected bones at Walton-on-the-Naze.
"Officers attended alongside HM Coastguard and noted the remains appeared to be that of a seal.
"The bones were collected and booked in at Clacton police station for further examination.
"They were confirmed by experts as seal bones."
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