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Matutinal animals are active only after dawn, and vespertine only before dusk. A number of factors affect the time of day an animal is active. Predators hunt when their prey is available, and prey try to avoid the times when their principal predators are at large. The temperature may be too high at midday or too low at night. [2]
Blue hour at the Old Cathedral of the Holy Name of Jesus, Bragança in Portugal. The blue hour (from French l'heure bleue; [1] [a] pronounced [lœʁ blø]) is the period of twilight (in the morning or evening, around the nautical stage) when the Sun is at a significant depth below the horizon.
Civil dawn is preceded by morning nautical twilight and civil dusk is followed by evening nautical twilight. Civil twilight in a small town in the Mojave Desert. Under clear weather conditions, civil twilight approximates the limit at which solar illumination suffices for the human eye to clearly distinguish terrestrial objects.
Each morning, children find their elf in a new place causing different mischief than the day before: That's the magic. Since the book — and the elf that comes with it — debuted, the tradition ...
The blue shark (Prionace glauca) is a predator that primarily hunts during the pre-dawn to dawn period. [5] During matutinal hours, they spend more time than any other point in the day at the surface of the ocean. [5] It is likely that they are taking advantage of the increased density of prey at the water's surface during dawn. [6]
A top sleep expert on inaccurate labels and what parents should do before using these supplements with their kids. Melatonin overdoses in kids are on the rise. A top sleep expert on inaccurate ...
One morning, I’m at the park-and-ride and writing. The sun is bright and it’s a warm day for February. I hang my black rain jacket in the window to block the sun from shining on the computer ...
The time of dusk is the moment at the very end of astronomical twilight, just before the minimum brightness of the night sky sets in, or may be thought of as the darkest part of evening twilight. [4] However, technically, the three stages of dusk are as follows: At civil dusk, the center of the Sun's disc goes 6° below the horizon in the ...