Ans is<span> the </span><span>Pacific Ocean</span>
It would be harder for us to identify all the different types of animals that lived long ago.
You would go upstream as in north if you would go down stream it would be south
The Ancient Maya<span>. </span>Mayan<span> civilization lasted for more than 2,000 years, but the period from about 300 A.D. to 900 A.D., known as the Classic Period, was its heyday. During that time, the </span>Maya<span> developed a complex understanding of astronomy.</span>