communication

Way back when there were no cell phones, lovers used flowers as coded messages to keep their communications unknown to chaperones.

For many of us, cattle lowing in the distance sounds like the mere background music of a bucolic country scene. Cows, however, don’t talk without having something to say, and they even have unique voices.

Once one ant finds food, it leaves a pheromone scent trail so others can find the way with their antennae. Ant antennae not only pick up information, they can also give information.

A variety of characteristics are used to diagnose autism in children. Often, it's poor social and communication skills which others observe in children that compel parents to get a child tested. There are currently no unique biological indicators of autism.

Voices often indicate thoughts and emotions indirectly. Cues in the form of pitches, tones and pauses are qualities of voices that listeners use to make inferences about a speaker's mind. But those cues aren't always represented in content that we read, like in a transcript or a text message.