This curious creature 这种奇怪的生物 is a trilobite. 是三叶虫 And its breakthrough adaptation, armor. 它的突破性适应特征就是护甲 Trilobites are one of the first in a brand-new dynasty, 三叶虫 是一个全新王朝中的首批生物之一 the arthropods. 节肢动物 They've evolved an external skelet...
is a trilobite. 是三叶虫 And its breakthrough adaptation, armor. 它的突破性适应特征就是护甲 Trilobites are one of the first in a brand-new dynasty, 三叶虫 是一个全新王朝中的首批生物之一 the arthropods. 节肢动物 They've evolved an external skeleton, 它们进化出了外骨骼 a shield-like sh...
And its breakthrough adaptation, armor. 它的突破性适应特征就是护甲 Trilobites are one of the first in a brand-new dynasty, 三叶虫 是一个全新王朝中的首批生物之一 the arthropods. 节肢动物 They've evolved an external skeleton, 它们进化出了外骨骼 a shield-like shell that protects the...
escaping predation required a different approach. 逃避被捕食需要一种不同的方式 This curious creature 这种奇怪的生物 is a trilobite. 是三叶虫 And its breakthrough adaptation, armor. 它的突破性适应特征就是护甲 Trilobites are one of the first in a brand-new dynasty, 三叶虫 是一个全新王朝中的首...
For those still stuck on the seabed, 对于那些仍困于海床上的生物来说 escaping predation required a different approach. 逃避被捕食需要一种不同的方式 This curious creature 这种奇怪的生物 is a trilobite. 是三叶虫 And its breakthrough adaptation, armor. 它的突破性适应特征就是护甲 Trilobites are on...
the open ocean belonged to them. 广阔的海洋属于它们 For those still stuck on the seabed, 对于那些仍困于海床上的生物来说 escaping predation required a different approach. 逃避被捕食需要一种不同的方式 This curious creature 这种奇怪的生物 is a trilobite. 是三叶虫 And its breakthrough adaptat...
But more than half a billion years ago, 但是五亿多年前 the open ocean belonged to them. 广阔的海洋属于它们 For those still stuck on the seabed, 对于那些仍困于海床上的生物来说 escaping predation required a different approach. 逃避被捕食需要一种不同的方式 This curious creature 这种奇怪的生物 i...
In time, others would follow. 随着时间的推移 其他生物也会跟随而来 But more than half a billion years ago, 但是五亿多年前 the open ocean belonged to them. 广阔的海洋属于它们 For those still stuck on the seabed, 对于那些仍困于海床上的生物来说 escaping predation required a different approac...
jellyfish were entirely free of predation. 水母完全摆脱了被捕食的危险 In time, others would follow. 随着时间的推移 其他生物也会跟随而来 But more than half a billion years ago, 但是五亿多年前 the open ocean belonged to them. 广阔的海洋属于它们 For those still stuck on the seabed, 对于那些仍困...
Here, with fish yet to evolve, 在这里 鱼类尚未进化 jellyfish were entirely free of predation. 水母完全摆脱了被捕食的危险 In time, others would follow. 随着时间的推移 其他生物也会跟随而来 But more than half a billion years ago, 但是五亿多年前 the open ocean belonged to them. 广阔的海洋属于它们 F...