Articles > Physics > Biophysics > Bioacoustics > Secrets of Sound: Studying the Calls of Whales, Elephants, and Birds

Secrets of Sound: Studying the Calls of Whales, Elephants, and Birds

Secrets of Sound: Studying the Calls of Whales, Elephants, and Birds   



  • April Pulley Sayre


  • Reading level: Ages 9-12
  • Hardcover: 64 pages
  • Publisher: Houghton Mifflin (September 30, 2002)
  • Language: English
  • ISBN-10: 0618015140
  • ISBN-13: 978-0618015146
  • Product Dimensions: 11.3 x 9.3 x 0.5 inches
  • Shipping Weight: 1.3 pounds


Book Description

Can whales communicate across miles of vast ocean? Can elephants talk to one another with sounds we can not hear? Can birds’ calls help us count them in the sky? These are the kinds of questions that drive the work of acoustic biologists.

In Secrets of Sound, author April Pulley Sayre introduces us to three creative scientists—Christopher W. Clark, Katy Payne, and Bill Evans—who have dedicated themselves to researching how and why animals communicate. Sayre explores how new technologies and secret military information recently released are helping these scientists make exciting discoveries. Such work raises as many questions as it answers, and for the scientists (and readers) that’s half the fun.

This book celebrates the challenges of lab and fieldwork and the thrill of discovery. It not only explores the world of animal communication but also highlights the critical role scientific research can play in preserving endangered animals.

About the Author

April Pulley Sayre is a writer, video producer, and bird watcher with a special interest in "overlooked, sometimes maligned creatures," including bats, insects, and lemurs. She and her husband live in South Bend, Indiana.  


The Secrets of Sound, October 3, 2003

April Pulley Sayre’s Secrets of Sound is an invaluable resource for teachers. It is packed with information yet engagingly written. Not only does the book provide a fresh look at whales, elephants, and migratory birds, but also at the scientists who study these creatures. This behind-the-scenes peek into the lifestyles of these scientists may motivate children to explore a scientific career. At the end of each section, Sayre brings out the conservation effots of the featured scientist. This book on bioacoustics supports curriculum standards which require children to understand the physics of sound. Fine photos bring the text to life.