premise: an animal can survive in an environment with little food by storing fat sent2: traits that help animals survive in a certain kind of environment are often found in animals in that environment sent3: layers of fat are used to keep animals warm sent4: cold environments have cold weather / temperatures sent5: climate is the usual kind of weather in a location over a period of time sent6: if the environmental temperature / air temperature is too cold then an animal / a living thing in that environment may become cold sent7: if a living thing becomes too cold then that living thing will die sent8: cold environments usually have little food for animals sent9: an animal is a kind of living thing.
hypothesis: layers of fat are often a part of animals that live in cold climates