Question
Why is the gallbladder absent in rats?
Answers
GPT 3.5
The gallbladder is absent in rats primarily because their diet is different from humans and many other animals. Rats are herbivores and have a diet that is low in fat and cholesterol, which are the primary components that the gallbladder helps to digest and process. Since rats do not consume a high-fat diet, their bodies do not require the storage and concentration of bile that the gallbladder provides. As a result, they have evolved without a gallbladder, making it unnecessary for their digestive process.