How Change of Seasons Affects Animals and Humans

The equinox, on Wednesday evening, marks the beginning of fall and less daylight for the Northern Hemisphere. The change can have profound effects on animals and is also partially responsible for fall foliage. Credit: Dreamstime.

From Live Science:

Tomorrow (Sept. 22) at 11:09 p.m., Eastern Daylight Time, the center of the sun will cross Earth's equator, marking the autumnal equinox, and the start of fall in the Northern Hemisphere.

For a brief period, days and nights around the world each last close to 12 hours (day and night are not exactly equal, as the term “equinox” is meant to imply). Then, as the Earth continues its path around the sun, days become shorter and nights lengthen, with the change becoming more pronounced in the higher latitudes, but remaining nonexistent at the equator.

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