The main wall in the Bialowieza Forest bordering Poland and Belarus, which was originally designed to keep migrants out from the Middle East, now secludes and divides the population of Polish lynx, dramatically increasing the rate of population decline as well as decreasing the genetic diversity of the species. However, this rate of extinction for the lynx constitutes only one out of the many species that fear near extinction because of the construction and completion of the wall. Many species around the world also experience similar circumstances in their environments because of anthropological actions like such. Seasonal migrations, food shortages, mating and reproductive limitations, and habitat destruction are only a few of the issues associated with the construction of large projects like buildings or housing.

With the increase in climate change, the situation only gets more dire as animals cannot make their migration patterns to areas with different climate circulations. Over 35 percent of mammals by 2070 will have their ideal climate niches found in countries and regions besides the ones they currently reside, meaning migration is essential. However, human xenophobic activities and political tensions create literal barriers that include electrical fencing and razor wire.

The jaguar in the U.S southwest, European bison, Polish lynx, and freshwater animal species are examples of the many species nearing extinction currently. Some are wishing to make a return in numbers, but this is made impossible by countries. We must take action now.