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Calls of the Wild
  Songs of Love and BetrayalElephant RumblesEchoes in the  NightBee LinesA New Way to Hear

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"Calls of the Wild " premiered April 1. 2003.



Songs of Love and Betrayal
Biologists monitor the mating songs of the chestnut-sided warbler. Females prefer males with unwaivering songs, but don't always remain loyal.


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Elephant Rumbles
Researchers uncover copious communication among elephants below the range of human hearing. Do they stomp their feet to make long-distance calls?


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Echoes in the Night
A scientist in Panama listens in on bats' echolocation, using technology to match different calls to different behavior.


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Bee Lines
Scientists use trained bees and other tricks to determine if and how bees convey distance, height and geographical direction of food sources to each other.


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A New Way to Hear
Researchers discover the novel ear of a parasitic fly, and used the lessons learned to build a better hearing aid.


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Take a look at these related stories from the Frontiers Archive:

 



Figure That One Out
Tamarin monkeys and young ravens show a remarkable level of logical thinking and creative problem solving.


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If Only They Could Speak
Research with sea lions, parrots and chimps shows that many species can be taught some type of language that allows limited communication.


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Nasty Critters
Biologists study how rattlesnakes and scorpions fit into the desert ecology of Arizona.


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