Challenge 4: Keep Them Safe Grade 5 Suggested Resources VIDEOS Use your Internet browser to search for videos to show during class using the terms “animal bridges” or “wildlife crossings.” Conduct this search prior to class to verify the content is appropriate for the class and the challenge. ARTICLE Mammals move less in landscapes modified by humans [Article]. (n.d.). Retrieved from http://www. cfc.umt.edu/wbio/news/hebblewhite-2018-1.php