Hot and Cold Animal Puzzles

The idea of this jig saw puzzle project was to have everyone in the class work on one piece and in the end put the entire puzzle together.  The teacher gives a pre-cut puzzle piece and instructs that students are to draw an animal and surround it with either a cool or warm colored pattern.  When displayed the pieces were all tied together. The set back I experienced was that I used the wrong cool color that was requested, so I traced another puzzle piece out of white 12x18 paper and started over.

This could have an extension of listing all the animals that are included on the finished puzzle and write characteristics about these animals:  mammal or amphibian, hot or cold blooded, survival skills, food, habitat, life span, reproductive facts, where they live, what part of the country, or world they are mostly found/originated.