Right. But their genes do.

You assume: hit the dam > died.

Yeah pretty much. That’s why the dams were breached.

	▲	jimnotgym 10 months ago \| parent \| next [-]
		No it isn't. The remaining salmon population spawned below the first dam because their habitat was cut off. This reduced spawning and juvenile habitat meant less salmon. Now they have the whole river they are spreading out and the numbers can increase again
	▲	baxtr 10 months ago \| parent \| prev [-]
		And why there still left then?