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Atlantic Bottlenose Dolphins: Article Analysis

292 Words2 Pages

The article focuses on the sonar of Atlantic bottlenose dolphins including its features and characteristics that make them unique to their lives. Dolphins have the widest frequency range of any animal since they are able to hear between 100 Hz and 150 kHz. The peak of the broadband clicks they make are between 120 kHz and 130 kHz and their signals can last from 40 to 70 μs. The source levels peak at 210 and 227 dB. Three experiments were made exploring the characteristics of the dolphin’s echolocating abilities. The first experiment tested three blindfolded dolphin’s abilities to distinguish between the material composition and thickness of circular metallic plates. The diameter and thickness of the targets were 0.22 cm thick and 30 cm diameter

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