DALLAS, TX (AP).- An unprecedented collection of 182 ferocious prehistoric shark teeth, assembled on gaping jaws large enough to swallow several humans whole, is set to be auctioned in Texas. The teeth are those of the ancient Megalodon, a massive killer shark whose name literally means “big tooth” in Greek. The predators trolled warm ocean waters 1.5 million to 25 million years ago, growing longer than the size of one or possibly two city buses and eating whales and dolphins for snacks. Each tooth was collected by amateur fossil hunter Vito Bertucci, who spent nearly two decades plucking Megalodon teeth from the shores of South Carolina and Georgia before he was killed in a 2004 diving accident. He was 47. “He lived for this, and he also died for it,” said his brother, Joseph Bertucci, a beverage manager at a beach club in Long Island who wears