1. The cry embedded within the purr
Karen McComb, Anna M. Taylor, Christian Wilson, Benjamin D. Charlton 
Current Biology 
Volume 19, Issue 13, Pages R507-R508 (July 2009)
DOI: /j.cub
Copyright © 2009 Elsevier Ltd Terms and Conditions

2. Figure 1
Purr spectra illustrating intensity of voiced peak in a solicitation and non-solicitation purr from the same cat (Pepo).
For comparison with position of formant peaks and fundamental frequency see Supplemental Data; audio files of these purr types (solicitation and non-solicitation purr) are also supplied as Supplementary material.
Current Biology  , R507-R508DOI: ( /j.cub )
Copyright © 2009 Elsevier Ltd Terms and Conditions