I know it is, where gators live, there are no lungfish (unless they have also become an invasive species in the Everglades!) - this was filmed somewhere in Africa (though crocodiles also eat lungfish in Australia).
But while I was searching for a nice alligator gif, eagle-eye Pilgrim had already focused on other biological aspects and declared the reptile a circumcisor, the poor lungfish something phallic. So I was stuck with the crocodile.
Here's an alligator controlling his own population:
And a rather agile self-propelled croc here ...
