To aestivate is to lay dormant for the summer. Aestivation is similar to the familiar hibernation that many animals do, but is carried out by those creatures that don't like hot, dry weather. Such as the snail. Aestivation is not uncommon in animals who live in hot climates, especially those who require a degree of moisture, thus both land and water tortoises frequently retire into cavities of the ground during heat and drought and remain there until the recurrence of the rainy season. Research Aestivate