The U.S. National Oceanic Atmospheric Administration (NOAA) confirmed Friday, June 6, 2008, that the Caribbean monk seal is extinct--due to the actions of mankind. The last one was sighted in 1952 ...

Detail of the lock on the Brienne trunk., with custom seals of red wax still visible on the left and right which would have sealed it (© Signed, Sealed & Undelivered Team, 2015.

After five years of futile efforts to find or confirm sightings of any Caribbean monk seals, the U.S. on Friday declared the species extinct, noting it is the only seal to vanish due to human causes.

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