This happens because taproot formation is impossible, so trees developed shallow root beds.
Permafrost is soil that has a temperature below 0 °C (for about two years) and forms a solid matrix which can extend to a depth of hundreds of meters. Because of this structure the permafrost prevents trees from developing deep root systems. As a consequence, the shallow root bed of trees such as black spruce, causes them to lean or even fall.
The Arctic Hare's main predators are the Arctic fox, the weasel, snowy owl, and the lynx. Because hares provide food and fur for people, they are often killed by hunters. The Arctic Hare has no prey because it does not feed on animals.
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it means that all the organisms in that community rely on one another to survive :)
Dear Owner of Question
The exotic pet epidemic in the United States is overwhelming. There have been hundreds of tragic and often fatal incidents between owners and their exotic pets. Whether these animals reside in homes or in backyard menageries, the dream of owning a wild animal and raising it is short lived for many. No matter how hard a person tries to replicate a wild animal’s natural environment, they will always fall short. Owners realize fairly quickly that the animal they’ve purchased (usually through the illegal wildlife trade) isn’t manageable. Sadly, this often leads people to abandon, release, euthanize or – in the best case scenario – surrender their exotic animals to sanctuaries.
For some, releasing their pets into the wild seems the most “viable” option. Although some owners who take this course may have good intentions, releasing exotic animals into the wild is cruel, not to mention illegal. Having been raised by humans, these animals have little to no survival skills and succumb to the harsh elements that are foreign to them. They often wind up dying from exhaustion and starvation while others get hit by vehicles or killed by predators.
Sincerely, Jacob Torreyson