NATURE | Tall Blondes | "Silent Sentinels?" | PBS

From the "NATURE" episode "Tall Blondes," airing on PBS Sunday, December 17 at 8 p.m. (check local listings).

For centuries, biologists believed giraffes were the mute giants of Africa's plains and forests -- silent sentinels gazing to the horizon. In recent years, however, new techniques and technologies have allowed scientists to listen more carefully -- and realize that giraffes may be talking after all. Just not in a way that we can hear.

For more information, visit pbs.org/nature

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Pets & Animals

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• NATURE
• PBS
• Giraffe
• Lynn
• Sherr
• Tall
• Blondes
• manor

[imnotlikeothergirls5]

cool!

[Holousek]

wow! i knew it!

[cherryNerds]

this is so cool!