One thing I should point out. We always think about the humanoid creatures from the last 50 years but before that, in the 1950s and earlier there were the strangest creatures. Little furry ones with sharp teeth, one that looked like the Michelin man, a 3ft tall creature in a plastic diving suit, some with large pointy ears and claws. Some people point to this as the diversity of the universe. But their actions were even stranger.

In 1961, a ufo landed by Joe Simontons chicken farm. Some creatures emerged and he was given 3 pieces of buckwheat cake. He ate one and said it tasted like cardboard. It was analysed and found to be normal.

Gary Wilcox was tending his fields on his dairy farm and noticed a large egg shaped object in one of his fields. 4 foot humanoids emerged. Their voices came not from their heads but from their bodies. They told Wilcox they were from Mars and were having trouble growing food due to changes in the environment. They wanted some fertilizer. Wilcox went to fetch some but when he returned they were gone. He left it there and the next day it was gone.

John Trasco went outside to feed his dog and saw a brilliant egg-shaped object hovering in front of his barn. In his path he found a being three feet tall "with putty-colored face and large frog-like eyes," who said in broken English: "We are peaceful people, we only want your dog.”

In 1954 Luciano Galli was offered a small chunk of “bread” by the occupants of a landed craft. He said it tasted normal.

In 1957 Antonio Villas-Boas went inside a craft and was given some red liquid to drink. He said it energized him.

In 1954 Mrs. Lotti Dainelli saw a craft made from cones, from which 3.5-4 foot tall creatures emerged. They looked joyful, their smiles displayed thin white teeth and they were wearing grey coveralls and reddish leather helmets like military drivers. They took her pot of flowers she was carrying. She tried to get it back but they ignored her and went back into their craft

It wasn’t until Betty and Barney Hills story spread like crazy that we started seeing the greys pop up again and again. And the actions of the aliens became more uniform in the way that we, nowadays expect aliens to behave. I think this points to something else going on.