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Colossal Sea Creatures
Although megafish are impressive, even bigger organisms ply the world's oceans, from the great whales to sprawling jellyfish. A powerful stinger, the lion's mane jellyfish (pictured) can reach a diameter of 6.6 feet (2 meters), with tentacles topping 49 feet (15 meters).
The world's biggest fish, the whale shark, can reach lengths of 40 feet (12 meters). The world's biggest mammal, the blue whale, can easily reach the length of a city bus and weigh close to 200 tons.
Also tipping the scales are giant clams, which can weigh more than 500 pounds (227 kilograms) and live for more than a hundred years.
巨型海洋动物
巨型淡水鱼的体型给人留下深刻印象，但与鲸鱼、巨型水母等海洋中的巨兽相比，它们只能算是一个小个子。照片展示的是一只狮鬃水母，直径达到6.6英尺(约合2米)，触须长度超过49英尺(约合15米)。世界上体型最大的鱼类鲸鲨，身长可达到40英尺(约合12米)。世界上最大的哺乳动物蓝鲸的身长与一辆巴士相当，体重接近200吨。一些巨蛤的体重超过500磅(约合227公斤)，寿命超过100年。
