Although glue could technically be made from any animal, horses are large and muscular, so they tend to have a lot of collagen. Through processing, collagen can be made into a gelatin
Animal glue - Wikipedia
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How Did People Make Glue Out Of Horses?
How Did People Make Glue Out Of Horses?
Animal glue - Wikipedia
Animal glue - Wikipedia
What do horses have to do with glue?
is glue still made from horses – bak.una.edu.ar
Is Glue made from horses?
:max_bytes(150000):strip_icc()/hero-abcc039fcd3f48a89c83efb1c4ce7d63.jpg "Are Horse Parts Really Used to Make Glue or Is That Just an Icky Rumor?")
Are Horse Parts Really Used to Make Glue or Is That Just an Icky Rumor?
glue factory time | Poor little horse. He's definitely seen … | Flickr
:max_bytes(150000):strip_icc()/DSC09010-61e49d8389af4294a89c8c8b238d2fa9.jpg "Are Horse Parts Really Used to Make Glue or Is That Just an Icky Rumor?")
Are Horse Parts Really Used to Make Glue or Is That Just an Icky Rumor?
How Did People Make Glue Out Of Horses?
How Did People Make Glue Out Of Horses?
Is Glue Made from Horses? Is Glue Vegan?
The Glue Factory 101 - A Whole New World
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Is Glue Made from Horses? Is Glue Vegan?
