This reminds me of a story a few years ago about a seal or walrus that was rescued from an oil slick or other similar disaster and nursed back to health in captivity over a period of weeks or months. The animal was brought back out to sea amid a lot of fanfare from environmental activists, media, etc. -- and was promptly eaten by a shark or killer whale about 30 seconds after it was turned loose in the water.
That one's an urban legend. Even Rush Limbaugh got suckered into repeating that one on his show back during the Exxon Valdez oil spill clean-up.
Was thinking about the exact same thing, myself.
I believe it was a kller whale, not shark; and, it was an otter that'd been nursed back to health & was being rereleased amid much fanfare, complete with several classes of grade schoolers present to witness the event.
Of course, the creature was released, frollicked about momentarily before there appeared a rather large swell.
The otter suddenly disappeared as the giant dorsal fin of the Orca popped up & went back beneath the water.
The otter was but a tidbit for the big fish, akin to a mere cocktail hotdog for one of us?
Naturally, the kids were *truamatized* by the Orca's cuisine.
...requiring years of taxpayer funded crisis counseling.
I believe that it was a sea otter...JFK