A | Scientists from the University of Zurich scanned the vertebrae and dentition of a megalodon (Otodus megalodon). The reconstructed mega-fish died at age 46, approximately 18 million years ago.,“It would be a superpredator just dominating its ecosystem,” co-author of the study John Hutchinson said. “There is nothing really matching it.”,It reached a length of about 16 meters and weighed more than 61 tons. According to the simulation, the maximum swimming speed reached 1.4 meters per second. The shark had to eat food with a total value of 98 thousand calories per day. Whale oil was very likely an important source of these calories.,The volume of the predator's stomach could reach almost 10 thousand liters. As a result, scientists came to the conclusion that the megalodon could travel long distances and was able to eat prey the size of a modern great white shark, the biggest predator in the ocean.,Megalodons that lived in the Miocene and Pliocene (23-3 million years ago) were the largest sharks that ever existed. Today, their giant teeth are often found; they're big enough to cover the palm of your hand. However, skeletons consisting of cartilage rarely fossilize, so they have not reached our days in such numbers as the teeth.。
B | 不法分子依靠聊天培养感情，盗用照片打造完美人设，再编织各类灾祸借口，诱导受害人不惜举债给钱。很多当事人深陷虚幻恋情，很难及时察觉破绽，最终蒙受重大财产损失。前海检察院提醒市民群众网络社交交友时，务必绷紧防范的弦，不要轻信陌生人塑造的光鲜人设以及各类口头承诺。
C | 一旦网恋对象拿生病、家中遇祸作为理由索要钱财，不管是以借钱还是打赏的名义，都切忌草率转账，应当多方核实实情。倘若对方突然失联，还拿伪造的医疗文书百般推诿，务必保存聊天截图、转账凭据，第一时间报警求助。
D | 读特&深圳晚报记者 伊宵鸿
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