In day 19 Daniel knows that grunts and brutes can't speak so he thought the monster voice saying "is someone there?" was Philip playing a trick on him, but really its a tuurngait approching.
tuurngait are a lot better than amnesia enemies. Much funner to run away from, the voices are cool and the backstory behind them is better.
Also while it's quite hard to understand, grunts do speak when they see you, they have their jaw missing so it doesn't sound like normal speech though.
Also while it's quite hard to understand, grunts do speak when they see you, they have their jaw missing so it doesn't sound like normal speech though.