18.104.22.168 wrote: Someone came up with a therey that they were left behind by aliens.
You needs grammar class. Plus, that theory is idiotic. Aliens don't look like spiny green men(and if that's the one you're talking about, It's more likely that "shapeshifters" are a type of alien that can change their genetic coding extremely fast.)
Physics? You mean biology? Also, some scientists theorized that bipedalism is the best form for intelligent life, because it provides hands to work with. And, remember, convergent evolution is a thing, even on earth--for example, marsupial shrews and 'real' shrews look the same, despite being unrelated.
For intelligence, yeah, but humans have some downsides too, we can only hear 20 hertz to 20Kht, and some animals can exceed that limit easily. Some quadrupeds can run way faster then humans, Chubacabra can run faster then us.
my friends and i were in central PA. population 500ish. a field and woods just across a small two lane street. we went about 100 yards in. heard movement behind us. took the tracks on the way out. went back in on the other end. about 30 yards. one of my friends said she saw red eyes so i hurried them outta there and we got to the street. started walking and then they BOTH screamed. my male friend screamed. I looked to the left and saw red eyes next to a telephone pole. I hurried my pace to the driveway and turned around with a flashlight and a knife. it kept running back and forth just inside the brush line. i was in the middle of the street trying to call it out.. it was pissed. it went crashing through the brush and then we heard about four more. all over that area. pissing off dogs. screeching wildly. i learned alot that night. she told me stories about dogs getting their heads bitten off. shit like that. in very rural areas, those things are present in packs
we roughly measured the height the next morning. theyre between 5 and 6 feet tall. they dont think like animals in a sense that i think if i drew a gun he wouldve hid behind the pole. another time one peeked around a tree. i was in the woods with a flashlight and a machete cuz i heard something out there.. i knew something was there. i talked. it talked back. the eyes appeared from around a tree. they act like animals and think like people. monsters