Here's a few interesting things you might like to hear if you are an animal lover of any sort
Things made from animals:
Rennet: Enzyme from calf stomach, found in cheeses
Gelatin: Animal Collagen found in marshmallows, candies, gelatin desserts and yogurt
Isinglass: the swim bladder in fish used in some alcohols (beer and wine)
Fatty acids from animals: Make up several kinds of plastics
Glycerin: used from cows to made toothpaste and brushes
Bones and Horns: used from buttons
Civet's perineal glands: to extend the life of a perfume (they scrape the captive civet's anal glands)
Also in perfume: Ambergris in whales, musk from male deers, castor oil from beavers
These are just a few things made from animals for our own selfish use. Please, check the label before you buy groceries or really any product from toiletries to furniture.