music: 70's Chart Toppers: Name The Artist: Don't Cross The River?

Questions

cattle are the only mammals that are retro-mingent (they pee---------- )?

certain ---------- emit a light so penetrating that it can pass through flesh and wood?

certain fireflies emit a light so penetrating that it can pass through ---------- and wood?

certain fireflies emit a light so penetrating that it can pass through flesh and----------?

certain ---------- can be frozen solid then thawed, and continue living?