Diapause
- It is a dormant stage in the development of an organism.
- It occurs both in summer and winter.
- During this period there is reduction in the amount of free water.
- It is common among insects such as monarch butterflies, and in the embryos of many of the oviparous species of fish in the order Cyprinodontiformes.
- It is a state of inactivation in an ectothermic mature organism.
- It occurs only in winter. It is winter sleep in which animal passes the winter period in dormant condition.
- There is no such adaptation.
- Californian pocket mouse and kangaroo mouse and bats are known to hibernate. Several insects, small birds and mammals hibernate regularly each year.