It's common knowledge that human activity has had a colossal impact on the state of the Earth.
Agriculture and land development have resulted in a shocking change to the natural environment... and we haven't even got to the issue of deforestation yet. Over the years, we have destroyed a staggering amount of natural land, which has resulted in the endangerment and extinction of many mammals and birds.
And the ones that have managed to survive our rampage through the planet are now being forced to change their habitual behaviors completely.
Studies have found that, due to human activity, a number of different species have had to make drastic changes to their living habits in order to avoid interacting with us humans.
Heartbreaking, I know. Read on to see the drastic effects that us humans have had on these animals. Warning: you may want to cry after reading this one.