We are the product of history

It also allowed the establishment of the thermohaline circulation, a global water conveyor belt, which transports warm water across the Atlantic, and influences the climate of the East Coast of North America, the West Coast of Europe,and many other areas.It's a challenge to track all of the ways the collision of the Americas changed the world,but it's safe to say that the ripples of the Great American Biotic Interchange have propagated through the history of life on the planet, and that of mankind. What if these species hadn't gone extinct, or if there were no monkeys in Central America, or jaguars in South America? What if the thermohaline circulation wasn't flowing? Would the East Coast of North America be much colder? It all goes to show some of the most impactful transformations of our planet aren't the explosive ones that happen in an instant, but the ones that crawl towards irreversible change. We are the product of history.