Which characteristic was shared by the life forms that succeeded at the K-Pg boundary, such as small mammals and birds?

Answer

Capacity to shelter and a generalized or omnivorous diet

The groups that survived the K-Pg boundary shared traits like small body size, an omnivorous or generalized diet, and the ability to take shelter, contrasting sharply with the specialists that perished.

Which characteristic was shared by the life forms that succeeded at the K-Pg boundary, such as small mammals and birds?

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