The linkage of humans and animals and the importance of wildlife in the past _____ years has been brought to limelight largely because we have leart that their existence is inextricably tied to our own:

The correct answer to the question: "The linkage of humans and animals and the importance of wildlife in the past _____ years has been brought to limelight largely because we have leart that their existence is inextricably tied to our own:" is "100".