Corrected entry: All of the animals realize they are trapped in the valley unless they can get to "the boat" before the area floods. This begs the question - where did they come from that led them to the valley and why not just go back the other way instead of making the pointless trek to the other side?
MasterOfAll
4th May 2017
Correction: They've been there a long time. The path they took is now frozen.
MasterOfAll