Answer:
EGG
Explanation:
The egg came first. According to the researches of many others, it has been determined that assuming the "chicken egg" comes from a BIRD......
That the egg has came first, and then it would evolve into a chicken.
The egg
At some point in history there were no chickens, two birds that were almost-but-not-quite chickens mated and laid an egg that hatched into the first chicken.
