During the Cambrian Period, there was an unprecedented diversification of life across the planet. The Cambrian explosion followed the rise of oxygen to near-present levels and eventually gave rise to the diverse animal lineages on land and in the sea.

Question

During the Cambrian Period, there was an unprecedented diversification of life across the planet. The Cambrian explosion followed the rise of oxygen to near-present levels and eventually gave rise to the diverse animal lineages on land and in the sea.
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GPT 3.5 · Answer

During the Cambrian Period, life on Earth experienced a rapid and extensive diversification. This explosion of life occurred after oxygen levels increased significantly and led to the emergence of a wide range of animal species both in the oceans and on land.