Provide your best answer for the following question. Give ONLY the answer, no other words or explanation.
For example:

Answer: <most likely answer, as short as possible; not a complete sentence, just the answer!>.

The question is: Needing to predict planting and harvesting times and when certain food animals would hibernate, early humans learned repeating weather patterns, star formations and time intervals to realize that
one year consists of 365 days and nights
Seasons follow a cyclical pattern based on Earth's orbit around the sun.