music: 80's Chart Toppers: Name The Artist: Body Language?

Questions

cats have over ---------- vocal sounds, while dogs only have about ten?

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

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?