Dogs can communicate with each other.

Multiple reliable sources confirm that dogs have complex communication methods to interact with one another. This includes vocal signals such as barks, growls, whines, and subtle sounds that convey different emotions or intentions. Dogs also use body language extensively, tail position, ear orientation, facial expressions, and posture, to send messages.

Additionally, scent plays a crucial role in canine communication; dogs can detect chemical signals in each other's body odors that provide information about identity, emotional state, and reproductive status. These communication methods help dogs establish social hierarchies, avoid conflicts, initiate play, and maintain peaceful interactions. While dogs do not have a language comparable to human speech, their communication is effective within their species and context-dependent.

Some anecdotal discussions also suggest dogs may respond to each other's vocalizations across different breeds and regions, indicating a shared understanding of these signals.