Mainly because there are less predators around at night.
Bats are active during the nighttime hours and sleep during the day.
Jawless fish first evolved during the Cambrian, about 530 million years ago.
because
Disturbed nighttime sleep is tossing and turning, nightmares, and frequent awakenings during the night.
During the winter months in Greenland, the duration of nighttime can vary depending on the specific location within the country. In general, the nighttime can last for several months, with some areas experiencing 24-hour darkness for a period of time.
They are active during daylight hours.
only during the winter solstice
During the summer (in the northern
The recommended bike light for optimal visibility and safety during nighttime rides should have a minimum of 200 lumens.
The moon does not come out only at night. It is visible in the sky during during times in its orbit in both daylight and nighttime hours. This may be confirmed by reviewing any table of moonrise and set times as is found in books such as the Old Farmers Almanac.
Heat waves can occur during both daytime and nighttime. However, temperatures are typically highest during the daytime due to the sun's radiation, which can contribute to more intense heat wave conditions during that time.
Parrot fish sleep in slimy bubbles. The slimy bubble hides the fish's scent. This protects the parrot fish from nighttime predators like moray eels, which hunt by their sense of smell.