Originally Posted by ratbastid

Yeah, they put the Dharma logo on the shark that attacked Michael's raft in S2. The producers intended it to be an easter egg for the DVD buyers who obsessively frame-by-frame their way through things, but it was a little too obvious and was seen on broadcast day. Massive fan-speculation ensued, and it turns out not to have been really anything but a joke. This is a very nice homage, three years later, but I wouldn't get too antsy about there being actual dharma sharks.