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Melon (cetacean)

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Melon (cetacean)

The melon is a mass of adipose tissue found in the foreheads of all toothed whales. It focuses and modulates the animal's vocalizations and acts as a sound lens. It is thus a key organ involved in communication and echolocation.

Tables

Melon composition in K. breviceps[10] · Composition › Pygmy sperm whale
Lipid content (weight)
Lipid content (weight)
Col 1
Lipid content (weight)
Col 2
15–91%
Outer melon
74–94%
Inner melon
92–96%
Lipid composition
Lipid composition
Col 1
Lipid composition
Col 2
Wax esters
Outer melon
8–46%
Inner melon
40–90%
Spermaceti organ
84–99%
Triglycerides
Triglycerides
Col 1
Triglycerides
Col 2
54–92%
Outer melon
10–69%
Inner melon
1–16%
Average number of carbons
Average number of carbons
Col 1
Average number of carbons
Col 2
Wax esters
Outer melon
32–35
Inner melon
29–32
Spermaceti organ
28–29
Triglycerides
Triglycerides
Col 1
Triglycerides
Col 2
47–51
Outer melon
41–46
Inner melon
45
Outer melon
Inner melon
Spermaceti organ
Lipid content (weight)
15–91%
74–94%
92–96%
Lipid composition
Wax esters
8–46%
40–90%
84–99%
Triglycerides
54–92%
10–69%
1–16%
Average number of carbons
Wax esters
32–35
29–32
28–29
Triglycerides
47–51
41–46
45
Image
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