Zevahim 74: Mediterranean and Dead Seas: How to Lose a Minority Item

More on mix-ups of prohibited animals together with permitted animals... with a tour back to Tractate Avodah Zarah, with a ring of idolatry that was intermingled with other non-prohibited rings. And then one is lost in the Mediterranean. How does that affect the decision about majority? And how does it inform the understanding of the animals...? Plus, the division to form majority - with the specific example of 100 rings. Also, when one of a mixture of 10,000, as the case may be, of which one is prohibited, falls into another group of three, such that it is still in a minority, is it permitted or not? Plus terumah, plus the impact of the Dead Sea.