[The tattoo! Well, that explained some of it. He'd noticed it when he first arrived (after all, new marks on his 4000+ year old body is something a guy would notice) but only recently had it done anything strange other than exist.
He has a sudden stroke of insight and backs up in the video slightly to show his hands]
The coral caused this? [he signs, hoping that not actually speaking with keep him from the ridiculous rhyming]
[Video]
He has a sudden stroke of insight and backs up in the video slightly to show his hands]
The coral caused this? [he signs, hoping that not actually speaking with keep him from the ridiculous rhyming]