When saber-toothed tigers, woolly mammoths and giant sloths roamed North America during the last Ice Age about 18,000 to 80,000 years ago, the Gulf Coast’s climate was only slightly cooler, more similar to regions to the north like Missouri and North Carolina’s climate today. As sea level dropped and exposed more land on the continental shelf, bald cypress trees became established in swamps in what is now the northern Gulf of Mexico.
Click here for original story, Underwater ancient cypress forest offers clues to the past
Source: Phys.org