During spring, the axis of the Earth starts to tilt toward the sun, which causes the hours of daylight to increase in countries located in the Northern Hemisphere. Air, water and ground temperatures also increase, leading to growth of new plants. The animals that consume the newly regenerating plants begin to appear, followed by their predators.
Animals that hibernated during winter, such as bears, hedgehogs, frogs and ladybirds, emerge from their sleep and start to build up their energy for breeding. Many animals and birds produce new babies in spring because they need plenty of food and longer days to gather food for their offspring. Furthermore, migratory animals appear in some places, as they are attracted to the increasing number of insects and warm weather during spring. The longer daylight hours enable them to acquire food for their young.
There are frequent rain showers in April, and flowers start to bloom in May. Lots of plants grow in spring because they get more warmth from the sun, which warms the soil and air, more water from rain and more sunlight from longer days. Grasses grow well, and animals, such as cows, thrive on grassy lands.
The holidays that occur in spring include Easter, April Fools' Day, Passover, Arbor Day and Earth Day.