Tuesday, July 19, 2016

Climate Change and Grolar Bears:

Climate Change has resulted in the loss of many species throughout the entirety of our world’s existences, causing many animals to become endangered as well as extinct in some cases. One of the most common animals struggling to stay in population today is the polar bear, which is known for being a rare species in the Arctic. In this article it was noted that due to changes in a species habitat, like the polar bears for example, there might be a way for them to repopulate and evolve with their cousin the grizzly bear.
Studies have been shown that genetically polar bears and grizzly bears have the possible of becoming a hybrid but the probability for this to occur naturally is low. In the article it is stated that on average only 6.4% of animal species would actually meet  geographically and even then that could take years to happen. During the beginning of biology sophomore year we talked about ecology and how organisms are affected within the environment. Relating this topic to my previous biology class and the topic of ecology and natural selection this shows how natural happenings could throw off the lives of an organism. Natural selection relates to this article, by showing how the polar bears will have to adapt to a new environment which could result creating the grolar bear hybrid.
I find it extremely interesting that the possibility of producing hybrids could become a natural solution for the re-population of some animals like the polar bear. I would like to know more about the genetic makeup of these to species and how it is possible to create hybrids.