New paper by Johanna Schick, Sabine Stoll and other colleagues on the evolution of infant-directed communication
To assess whether infant-directed communication is unique to humans or rooted more deeply in the primate lineage, Wegdell, Fryns, Schick et al. investigated directed and surrounding vocal communication in human infants and infants of wild nonhuman great apes. Findings reveal that human infants receive dramatically more infant-directed communication than nonhuman great ape infants.