Examlex
Upon observing a golden eagle flying overhead,a prairie dog on "guard duty" gives a warning call to other members of the prairie dog community that are foraging.What form of animal behavior is this?
Sleepiness
The state or condition of feeling the need for sleep, characterized by tiredness, reduced alertness, and a lack of energy.
Bright Light
Refers to intense illumination that can influence mood, circadian rhythms, and visual processes.
Circadian Rhythm
An internal biological clock regulating the sleep-wake cycle and other physiological processes in a roughly 24-hour cycle.
Weekends
The part of the week traditionally reserved for rest and leisure activities, in many cultures spanning Saturday and Sunday.
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