A leopard seal ate one. And pooped it out. The poop (you can call it scat if you don't like poop) was collected and then frozen for more than a year. It was then defrosted and rinsed under a tap to get the big bits out. One of the big bits was the USB stick. It was dried out for a couple of weeks, and they still accessed a bunch of photos.
(If you've been hanging out around New Zealand beaches with a blue kayak, you might want to look at the photos ...)
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