It could've just been a large rock, but something told Narit Suwansang that he had found something more. It's not gold, but it might as well have been. According to Thai news outlet Thairath, the plain yellow-beige rock which Suwansang found lying innocently along a beach in Nakhon Si Thammarat on Nov 26 turned out to be whale vomit. And before anyone starts gagging, that stuff's pricey. Ambergris, or whale puke really, is formed when a sperm whale throws up and its bile floats along the ocean till it washes up on shore as a hardened chunk. It's used mainly...