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.    


  1. I agree with how exciting this could potentially be. Of course there are tons of hurdles that we will need to jump over in order for this to become a reality, it still seems as though we are moving in the right direction to combat the extinction of so many species. It is incredible to see how science is changing and growing in order to battle against what humans have done to the world thus far. So yeah, this whole process seems super interesting and it will be cool to see how it plays out in the future!

  2. Reading this, I couldn't help but get stuck in that tiny percentage that makes this potential way for polar bears to survive impossible, or at least extremely improbable. If hybridization is a way that the poler bear race could be in some way preserved, would it be worthwhile for us humans to look into facilitating some kind of overlap that would force such an outcome? Currently, we are trying to save the poler bears by preserving their environment, but to be honest, we aren't doing thar great ar it. Your comment on how natural selection plays into the equation really made me focus on how we could use that as a tool to possibly preserve he bears left, even though they would be some what different.