Many physiological adaptations have evolved that make flight more efficient.

The secret of their deep diving may not lie, as had been thought, solely in physiological adaptations.

A number of physiological adaptations serve to prevent embolisms.

Plants with such morphological and physiological adaptations are called xeromorphic.

Therefore, the effects of flight duration on physiological adaptation and readaptation could be examined.

To survive fresh water, the fish need a range of physiological adaptations.

Crassius species exhibit some remarkable physiological adaptations to their environment.

Analyses such as this demonstrate the physiological adaptations to environmental changes that animals undergo.

Thorold's deer has a number of physical and physiological adaptations to its high altitude environment.

Yet psychological adjustment to air pollution does not imply physiological adaptation.