Health Editor’s Note: Yes, I am relieved that house cats do not roar. If they were able to roar, the sound would be deafening around here…..Carol
Secrets of a Lion’s Roar
by Sarah Zielinski/Smithsonian.com
A group of biologists and speech scientists studied how lions and tigers roar by examining and testing tissue from the larynges of three lions and three tigers from the Henry Doorly Zoo in Omaha that had been euthanized because they were old and sick. The researchers were particularly interested in the vocal fold tissues, soft connective tissues made of collagen, elastin, a lubricant and fat.
Vocal folds are just another name for vocal cords, and they are a bit different in lions and tigers than in other species. In most species, the vocal folds are shaped like triangles where they protrude into the animal’s airway. But in lions and tigers, the protrusions are flat and shaped like a square, courtesy of the fat deep within the vocal fold ligament.
Carol graduated from Riverside White Cross School of Nursing in Columbus, Ohio and received her diploma as a registered nurse. She attended Bowling Green State University where she received a Bachelor of Arts Degree in History and Literature. She attended the University of Toledo, College of Nursing, and received a Master’s of Nursing Science Degree as an Educator.
She has traveled extensively, is a photographer, and writes on medical issues. Carol has three children RJ, Katherine, and Stephen – one daughter-in-law; Katie – two granddaughters; Isabella Marianna and Zoe Olivia – and one grandson, Alexander Paul. She also shares her life with her husband Gordon Duff, many cats, and two rescues.