浣熊最常被聯想到的行為就是洗滌行為，圈養環境中的浣熊所獲得的食物對行為的影響是否會有偏好性，而浣熊對食物的洗滌是否會因為食物的偏好而有所關連。本研究希望探討北美浣熊、南美浣熊、蜜熊，這三種浣熊科動物在相同環境中的行為差別，以及對食物的偏好是否影響行為和洗滌行為的成因。實驗在三物種的圈養環境給予相同水體，觀察其行為前後變化，並調整食譜，監測動物對食物偏好與行為與偏好的關係。
經實驗後判斷南美浣熊和蜜熊可能因為身體構造與生活習性的差異，即使給予相同的環境他們也不會產生相同洗滌的行為。然而浣熊科動物的圈養環境經常過於單調，食物性質與味覺錯置改變可給予北美浣熊及南美浣熊行為刺激與可能的圈養壓力釋放，若無法給予足夠的活動空間仍可用環境氣味與食物的口味改變，提升環境豐富度進而提高其動物福祉。
The most well-known feature of raccoons is washing behavior. Whether the food obtained by raccoons in a captive environment has a preference for behavior, and whether washing of food by raccoons is relevance to food preferences. The purpose of this research is to investigate the behavioral differences between the three species of Procyoninae in the same environment. Whether food preferences affect behavior and the causes of washing behavior. The experiment gave the same water body in the captive environment of the three species, observed the behavior change before and after, and adjusted the recipe to monitor the animal's preference for food and the relationship between behavior and preference.
It is determined through experiments that coatis and kinkajous may not have the same washing behavior even if they are given the same environment due to differences in body structure and living habits. However, the captive environment of the Procyoninae is often too monotonous. The misalignment of food properties and taste can give raccoons and coatis behavioral stimulation and possible release of captive pressure. If sufficient activity space cannot be given, the environmental smell and food taste change to enhance the richness of the environment and thus its animal welfare.
