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The screaming is to (hopefully) alert other members of your pack/tribe. So they can either come help you, or they can escape the predator.Maybe evolutionary biologists know this and I'm really late, but it occurred to me the other night after a schmoke - when you scream in fear, what is it that you are doing, exactly?
You have been presented with a threat, and your reflexive response is to:
- Put up your hands with your nails (claws) pointing outwards towards the threat
- Show your teeth
- Widen your eyes
- Make a loud, shrill, terrifying noise
Screaming is a threat display. It's so ancient that it dates back to when we actually had claws, which was several species ago. We tend to forget that we are still animals, fundamentally.
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Late and bongcloud derail for this post from the movieblob threadThey used to in that era. Then sales slowed because fridges and appliances in general took a long time to break, and even when they did, they were designed in such a way to be REPAIRED, not replaced. It's the same with removable batteries in phones for a modern example. They can do it, but they don't want to. But all that leads to is heavy metals in the landfill and wasted copper