Scientists interested in learning what prehistoric animals and humans sounded like may get some answers from art. The artist featured in this audio story researched the anatomy of extinct animals, including the woolly mammoth. She used her findings to reconstruct vocal chords that emit woolly mammoth blasts, sounds that she believes are close to the way the animals sounded in prehistoric times. Listen to hear the reconstructed sounds of a woolly mammoth, and learn about the art and science of rebuilding ancient voice boxes.
Story Length: 4:12
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Marine biologists are studying the sounds that fish make. They believe that sounds are vital to understanding fish behavior. By studying the sounds that fish make when trying to attract mates and when breeding, biologists may be able to stay clear of them during those times to help them reproduce more productively. This protects the fish from human behavior. Listen to learn how this will help fishermen ensure the species don't die out.
Woolly mammoths were large, elephant-like creatures that lived tens of thousands of years ago, during the last great ice age. The thick, furry coat is one of several traits that gave woolly mammoths an advantage in a very cold environment. Today, the closest biological relative is the Asian elephant, which prefers warmer climates. Scientists were curious about the genetic variations between the woolly mammoth and the Asian elephant, and what might account for the differences between the two species. In this audio story, we hear from a scientist who studied the DNA from the extinct mammoth and compared it to its contemporary descendant. Listen to learn more about what researchers discovered.
The Tibetan Plateau is one of the highest and coldest places on Earth. Many of the world’s tallest mountains, including Mt. Everest, is on the Tibetan Plateau. For millions of years, animals living in this region have needed to adapt to extremely cold temperatures. When an ice age took over Europe and Asia about 2.5 million years ago, this adaptation may have given animals living on the plateau an evolutionary advantage. Listen to hear about the discovery of the woolly rhino on this plateau and the new theories resulting from the discovery.
Animals communicate through sounds, touch, visual signals, and scent, and each species has its distinct communication methods. In this audio story, Earth Ranger Emma presents examples of communication among various species, including elephants, and explains the messages and emotions that are being communicated. Listen to learn how and why animals communicate, how animal sounds reflect an environment’s health, and how people can safely respond to communications from animals.
The Lexile Audio Measure is an indicator of the complexity of an audio passage. It is based on a scientifically developed scale with a maximum score of 2000L.How to Use Lexile Audio Measures
Find stories at the right level of complexity for your students, so that they will be challenged without being frustrated. The measures are categorized into low, medium, or high in order to aid teachers in story selection when they do not know students’ Lexile listening levels.
|Listening Level||Lexile Audio Measures|
These recommended ranges are for instructional use of Listenwise audio content in combination with supports such as the interactive transcript, etc.
|Grade||Lexile Audio Measures (Recommended Ranges)|
|1||215L - 610L|
|2||490L - 855L|
|3||725L - 1060L|
|4||945L - 1250L|
|5||1045L - 1350L|
|6||1125L - 1430L|
|7||1190L - 1500L|
|8||1250L - 1555L|
|9||1300L - 1610L|
|10||1345L - 1655L|
|11/12||1385L - 1695L|