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  • Some bat mothers make different sounds to their young than other bats. (Wikimedia Commons)
    Baby-Talking Bats
    Walker Rhea
    “Baby talk,” or “motherese,” might not be a language with any native speakers, but most humans seem suddenly fluent in it in certain situations. And it turns out bats might do something similar.
  • Children with autism may understand an emotion’s meaning differently when it’s conveyed through tone of voice. (Scott Vaughan, Wikimedia Commons)
    Autism And Tone Of Voice
    Walker Rhea
    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.