Ocean Migration lets biters cross deep oceans and rebuild nests on distant land once evolution is high enough. They earn migration budget over time, scaled by evolution and the budget scaling setting. Tune frequency, costs, cooldowns, nest count, and optional experimental island-building.

Example: at 80% evolution and 2x scaling, biters earn 160 budget/min. A 300-tile crossing with 2 nests costs 2350 budget.

NOTE: They do not gain this ability until 50% evolution, by default! If it's not working, this is why.