17. You Should Learn This Just To Be Prepared! You Never Know…

[maxbutton id=”2″ url=”https://www.reddit.com/r/funny/comments/lvsmd/i_better_learn_this_just_in_case_found_in/”]

 

18. He Found This In His Little Brother’s Textbook…

[maxbutton id=”2″ url=”https://www.reddit.com/r/funny/comments/2y8u6g/found_in_my_little_brothers_textbook/”]

 

19. Biology Textbook Examples Are The Best:

[maxbutton id=”2″ url=”https://www.reddit.com/r/funny/comments/34illi/this_was_in_my_friends_biology_textbook/”]

 

20. Because In Japan It’s Perfectly Normal To Have More Than 5 Fingers Per Hand:

[maxbutton id=”2″ url=”https://www.reddit.com/r/funny/comments/rw2qt/textbook_level_chernobyl/”]

[maxbutton id=”1″ url=”http://sharetroopers.com/funniest-things-found-school-textbooks/6/” ]