A short filler to begin or end a lesson with.
01. Which ecological change had an impact on the whole food chain?
02. In which year were the wolves reintroduced into YellowStone Park?
03. How many years had they been absent?
04. Which animal changed its behaviour radically after the wolves came back?
05. What happened to the trees?
06. Which other species flourished? Name 3.
07. Which bigger type of birds returned?
08. How come the bear population increased?
09. Which natural element changed because of the wolves’ return?
10. Which 2 major changes did the wolves cause?