WAnimal glue
WAnimal product
WAnimal source foods
WBile bear
WBoiling down
WCatgut
WColostrum
WCoral reef
WCrocodile skin
WDried cat
WGlucagon
WHorn (anatomy)
WGelatin
WInsulin
WJackal's horn
WJell-O
WPhenylalanine
WRabbit's foot
WShofar
WCatgut suture
WWax