Snakes, Sand, and Penguins
Climate and Rainfall
Cold deserts receive plenty of snow all year and some rain in the spring. It is frigid (-2°C to 4°C) in the winter and warms up slightly in the summer (21°C to 26°C). It isn't hot enough for grass to grow, only small wildflowers. Arid deserts are generally warm during fall and spring (20°C to 25°C) and are extremely hot during the summer (43.5°C to 49°C). It rains in short periods after long periods of little to no rainfall.
Desert Scenery and Life
Animals in arid deserts adapt so that they are able to survive in dry and water-less conditions. A great example of an animal able to retain water would be a camel. Deserts also contain snakes and scorpions with scales able to protect themselves from sand. Spiders, vultures, and meerkats also call hot and dry deserts home. In cold deserts, animals need to be protected from the freezing temperature with fur, such as penguins and seals.
Competition and Predator/Prey Relationships
Scorpions and spiders need to compete for a variety of insects. Killer whales and leopard seals compete over penguins. Meerkats are prey to snakes. Lizards are prey to hawks. Squid are prey to penguins and certain fish are prey to penguins.
Deserts have a relatively low humidity rate. This is due to the lack of water and the extreme dryness that comes with it.
Humans dig for fossils and oil in deserts, disrupting the natural habitat of wildlife there. Global warming increases the temperature and the dryness in the desert.