Aestivation is the name given to a period of summer dormancy. Summer dormancy is often exhibited by animals when conditions become unfavourable.

For example, should summer temperatures fall below a specific threshold an insect might aestivate in its pupal state rather than emerge. Other examples include land crabs aestivating in their burrows to avoid a summer drought. 

Other names for (or types of) Aestivation include:

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