sand

Dominic Boileau was visiting a pet shop in Ottawa, Canada, when he came across this Sand Sifting Goby fish gulping down some food. In this close-up footage, the fish appears to ingest food, only to pass some back out through a passage at the back of his face just seconds later. The sight which amused Boileau has quickly become an online hit, attracting over 3,000 views in the first 24 hours of being uploaded.