Why do all ancient cultures have dragons

Not a metaphor question. I mean literally: Norse mythology has Jormungandr, ancient Mesopotamia has Tiamat, China has dragon kings, the Aztecs have Quetzalcoatl, Aboriginal Australians have the Rainbow Serpent. Cultures that had zero contact with each other. Did they all independently invent the same creature, or is this thing old enough that it got inherited from some shared ancestor population before humans spread across the earth. And is there actually a way to test that, or are comparative mythologists just pattern-matching and hoping.

Why does time feel like it speeds up as you get older

What actually happens to your body during a near-death experience

Can you actually die of a broken heart

Why do I always wake up at 3am

ADHD is not a disorder — it's an evolutionary advantage we pathologized

Hunter-gatherer environments would have selected for exactly the traits we now medicate away.

Why does my cat stare at the wall for 20 minutes straight

Do dogs actually love us or do they just want food

Nobody talks about the Boötes Void and I genuinely don't understand why

The Boötes Void. 330 million light-years across. Almost completely empty. That should be front page news every single day.