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Many animals are diurnal and sleep at night.
Relating to or active during the daytime.
Birds are often diurnal and sing in the morning.
Diurnal creatures are active when the sun is up.
Humans are primarily diurnal and work during the day.
diurnal animals
diurnal patterns
diurnal behavior
daytime
daily
solar
The diurnal of the plant shows how it opens in the morning.
A daily cycle or occurrence.
The diurnal patterns of the animals help them find food.
We studied the diurnal changes in temperature throughout the day.
Her diurnal routine includes jogging every morning.
diurnal cycle
diurnal rhythm
diurnal variation
daily
24-hour
daytime