I was surprised to find there had been no overarching study on mammalian facial interactions until recently [0]. Supposedly the first review of mammalian facial

I was surprised to find there had been no overarching study on mammalian facial interactions until recently [0]. Supposedly the first review of mammalian facial interactions and their neurobiology took place in 2011. [0] https://www.sciencedirect.com/science/article/pii/S0959438811002212 https://www.sciencedirect.com/science/article/pii/S095943881...