双头畸胎在爬行动物中很常见，尤其是英国草蛇，这种蛇把卵产在堆肥堆里，肥料里面正在腐烂的物质产生热量。
Dicephalus is common in reptiles and particularly in British grass snakes, who lay their eggs inside compost heaps where decomposing matter produces heat.
槌头双髻鲨是凶猛的猎手，以小型鱼类、章鱼、鱿鱼和甲壳类动物为食。
Hammerheads are aggressive hunters, feeding on smallerfish, octopuses, squid, and crustaceans.
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