Scuba Divers Find Rare Ice Age Mammoth Bone at Bottom of Florida River On 5/3/21 at 3:29 PM EDT "When you uncover this fossil and realize there were these giant, elephant-like creatures roaming around what was probably once a grassland in Florida, it gives you a sense of wonder for what it was like back in ancient times," Demeter, the director of Seminole State College's Emil Buehler Perpetual Trust Planetarium, said. "It's kind of like our way of time traveling. It makes your imagination go wild." Henry Sadler and Derek Demeter dredged this mammoth bone up from the bottom of the Peace River in Arcadia, FL.