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#fur #hair #pelage #mammal characteristics #warm-blooded insulation #furry animals

📖🐾🥛

#mammal study #zoology #mammalian biology #animal science #mammal characteristics #lactation study

🥛🐾

#mammary glands #animal class #vertebrate #mammal characteristics

🥛🤱🦺

#mammary glands #noitatcal #nursing young #mammal characteristics #milk production #mammalian reproduction