Discovery Channel recently had Shark Week, and this is the promo they made --
Other than the ending, it follows almost beat for beat the original strip, returning a rescued seal to the wild (although, in Pearls, it gets eaten by a whale instead).
No, I don't think they ripped off Pastis. Lots of people with awareness of nature and warped senses of humor would have done this. And it is a well-crafted gag.
I just wanted to establish that my favorite got there first is all.