After 12 years of research, scientists analyzed 636 recordings of vocalizations from 39 adult indris and found they share two different rhythmic patterns with humans. Like us, lemurs are primates.

Different rhythmic patterns are created by choosing where the emphasis (stress) falls in the line. These patterns all have names: An iamb: unstressed / stressed – da-DUM A trochee: stressed ...

Rhythm in music and in words Within poetry the beat is the pattern of stresses within a line of verse. In music, a drummer or bass guitarist might create the beat for the rest of the band to ...