Ever wonder why dogs are able to melt hearts the way they do? A group of researchers in the U.S. and the United Kingdom may have an answer for you.
For their initial experiment, the researchers dissected dog and wolf heads to study their facial muscles, finding that dog and wolf faces are pretty much the same minus one muscle around the eye: the levator anguli oculi medialis muscle, also known as LAOM.
"Once we the paper came out, it was just such an enlightening thing to see that 'Oh my gosh. Yes. Here's the scientific backing,'" Lee said.While dogs have the LAOM, wolves have muscle fibers surrounded by connective tissue, and sometimes, a tendon that blends with a different muscle. So, it's more difficult for wolves to raise the inner corner of their brows and perform the "puppy dog eyes" act.
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