(1) Mammoth and mastodon teeth have been dredged from 40 sites along the continental shelf off the eastern US in water up to 120 m deep.(2) She says they were only made for scenery - like the rhinoceros and the mastodon .(3) ‘But as scientists, paleontologists, we are all aware that a mammoth or mastodon being extinct is not the same as a living form,’ he said.(4) The equid and mammoth remains came from the upper unit and the mastodon and edentate material came from the middle unit.(5) What killed the saber-toothed tiger, the mastodon and the mammoth, formidable animals that were on top of the food chain in North America 20,000 years ago?(6) Geologists say it probably once belonged to a woolly mammoth or a mastodon .(7) In lower latitudes, mastodons and elephants, giant deer and ox, beavers, dogs and cats, and other familiar species existed in the forests and grasslands.(8) All too often books written for a popular audience include animals such as mammoths, mastodons , plesiosaurs, ichthyosaurs, and the sail-backed Dimetrodon.(9) Prehistoric elephants - not just the woolly mammoths of Siberia, but others, such as American mastodons - were a common sight across the northern half of the globe.(10) The fossils they found included mastodons - early relatives of the elephant - primitive horses, rhino and even early camels, as well as crocodiles, giant armadillos, turtles and ground sloths long since extinct.(11) Pretty much everywhere you look, you find evidence of big critters roaming the earth - mastodons , mammoths, big camels, and my favorite, beavers the size of black bears.(12) In this scenario, humans moved rapidly through the continent, slaughtering mammoths, mastodons and other large prey as they went.(13) Saber-toothed cats, mastodons , giant sloths, woolly rhinos, and many other big, shaggy mammals are widely thought to have died out around the end of the last ice age, some 10,500 years ago.(14) During the Pleistocene Epoch, which ended about 11,000 years ago, this scavenger dined on the carcasses of mastodons , giant sloths, primitive horses, and other megafauna of the time.(15) Clues from bones tell a remarkable story of an Ice Age drought, where mastodons (relatives of the mammoths) undertook huge migrations just to survive the seasons.(16) The trip takes an unexpected turn when the craft they are rowing begins a voyage back through time where the young heroes encounter mastodons , dinosaurs and eventually the starting point of life on earth.