Click on an animal/plant to embark/disembark boat. Click on Go button for the boat to cross the river. Remember to not leave any two, where one may eat the other, at either side without the man being close.
Decide a limit on how many will be allowed to board the boat at any time, say just 1 animal at a time, or 2 at a time, or even all 3 at a time. Please don't press Go while the boat is travelling, but only after it has reached the other side.
