Welcome to the Voice of America's News Words.
Scientists have discovered that songbirds, like humans, learn to make sounds by copying what they hear.
Hypothesis.
Songbirds and humans have a similar brain structure for learning sound, say researchers at Rockefeller University.
Scientist Eric Jarvis formed a hypothesis that molecules guide brain connections that create paths to the voice box, permitting the copying of sounds.
A hypothesis is an idea or theory that is not proven.
Learning a hypothesis is the first step in the scientific method.
