Animal life changed greatly during the cambrian explosion, with some groups expanding in diversity and others declining. What are the current hypotheses that explain these trends?

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14-03-2022
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Animal life changed greatly during the cambrian explosion, with some groups expanding in diversity and others declining. What are the current hypotheses that explain these trends?

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ogorwyne ogorwyne · Answer 1 · 2022-03-22T13:37:28+01:00

The current hypotheses that explains these trends are

Global climate changes.
Atmospheric changes.
Radiation of numerous terrestrial groups.

What was the Cambrian explosion?

This was the time that quite a number of organisms first appeared in the record of fossils.

This diversity took place over a very short period of time. This is why it is known as the Cambrian explosion.