Echolocation with dolphins
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Graphic:
Dolphins use the echo under water to locate other fish as prey.
Englisch, Deutsch, Spanisch (CREA)
27.07.2018
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Just like a bat, a dolphin can recognize from the echo whether the prey is nearby or not. It produces clicks and whistling noises under water. If it has discovered something of interest, the dolphin will move closer and "click" more quickly. This gives it an exact acoustical picture of its surroundings.
Information and ideas:
Based on the phenomenon of an echo, this graphic can show how animals use the echo to find prey.
Relevant for teaching:
Functions of the senses
Acoustic phenomena
Sound/acoustics: hearing range, hearing frequency limit, parameters
Vibrations and waves
Information and ideas:
Based on the phenomenon of an echo, this graphic can show how animals use the echo to find prey.
Relevant for teaching:
Functions of the senses
Acoustic phenomena
Sound/acoustics: hearing range, hearing frequency limit, parameters
Vibrations and waves
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Example
Biology; Personal, social and health education (PSHE); Physics; Technology
Grade 1 to 4; Grade 5 to 6; Grade 7 to 9; Grade 10 to 13
Elementary school; Middle/high school
Communication; Orientation (animals); Sense of hearing; Sense organ; Sound; Communication (animal); Echo; Hearing ability (animal); Localization; Sense of hearing; Sense organ; Sound field
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