"extreme" environments where mere survival is a constant struggle
Tundra temperatures can plunge to bone-chilling lows
Arctic fox may store food in tundra's permafrost, which freezes the food and keeps it available for winter when the ground is covered with snow
tundra receive very little rainfall
as little as 10 inches (25 centimeters) a year.
Plants in the cold, northern desert-like tundra—ground-hugging grasses, sedges, shrubs, moss, and lichens—have adapted by remaining small, resistant to wind, and able to grow in poor soil.
the very edge of survival in these lands of fire and ice.