A naughty man having fun with some random person!! lol
The egg likely came from a bird that laid it either in or near the river. It may have fallen into the water by accident or been carried by a current.
from a chicken
Colorado River system is where the Green river flows to.
egg
The egg.
the egg!
my answer
"Which came first, the chicken or the egg?" is a famous riddle that has no answer.
The green river in eastern Utah and the San Juan in southern Utah join the Colorado river.
The first cavemane who had to cross a deep river.
It came from a chicken who came from and egg which came from a chicken which came from an egg...and so on until a chicken-like ancestor in the wild was domesticated and made the "first" chicken. It's evolution.
The Green, Gunnisson, Dolores, San Juans, Virgin and Gila rivers among others.