章鱼的交配与捕食：同一化学感应系统的双重功能

Octopuses use the same system for sensing food or a mate, which has implications for speciation Anna Di Cosmo L ife begins with chemistry. Long before visual displays or acoustic courtship signals evolved, organisms detected one another through mol- ecules. Across animals, reproductive decisions are governed by chemical signals and the re- ceptors that interpret them (1–4). Because speciation is defined by reductions in gene flow between populations (5), identifying the mechanisms that bias mate recognition is central to understanding how species boundaries arise. On page 96 of this issue, Villar et al. …