Why does the shark in the Season 2 episode “Adrift” have a Dharma Initiative logo on its tail?
Previous answer: The shark was brought to the island for research by th Dharma Initiative. The logo was stamped on it so as to differentiate the difference between it and othe sharks New answer: That may be the “in-universe” explanation, but the fact is it was an Easter egg that ended up being way more visible than the creators ever intended.