Aurora is the second planet in a distant planetary system.
It’s a highly geologically active world with many active volcanoes.
There are two different types of plants:
Photosynthetic and chemosynthetic ones.
There is no grass on Aurora but most of the land is overgrown by photosynthetic unicellular organisms.
These microscopic organisms can join in great numbers and form multicellular plant-like organisms.
There are no seasons on Aurora because its axis is not tilted like Earth's. There are diurnal „seasons" instead due to the slow rotation period.
A lot of water evaporates during the long dry days. A lot of warm, most air rises up from the oceans, which leaves less air left near the surface which causes an area of lower air pressure. The air around this region has higher pressure and rushes in to fill the low pressure area. This air gets warm and moist to and rises too. This cycle keeps going and fuels large cyclones with a lot of rain at dusk.
As night approaches, temperatures drop and the rain becomes snow. A lot of water freezes. Some animals build organic "sleeping bags" to protect themselves against the temperatures and other animals. Photosynthetic plants close up and/or retract as a protective mechanism.
The nights are characterized by cold temperatures and almost no precipitation. Nocturnal animals come out of their burrows and/or cocoons. They are protected agains the cold by a layer of fat and/or feathery scales. Some animals have bioluminescent spots to communicate over ling distances.
At dawn the ice starts melting creating temporary wetlands and marshes. The photosynthetic plants open up again and the nocturnal animals return to their burrows and/or create cocoons to retain moisture.
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