Blubber
Blubber is a thick layer of vascularized adipose tissue found under the skin of all cetaceans, pinnipeds and sirenians.
Pronunciation
- IPA: /ˈblʌbər/
Etymology
The term "blubber" originated from the Middle English word "bluber", meaning "bubble", which is related to the Dutch word "blubberen", meaning "to bubble up".
Function
Blubber is more vascularized—or has a greater network of blood vessels—than other forms of fat. It serves as an important source of energy for these animals and also provides thermal insulation in cold water environments.
Structure
Blubber is composed of lipids (or fats) and is located immediately beneath the skin. In some animals, it may be as much as six inches thick, and can constitute up to 50% of the body mass.
Related Terms
See Also
External links
- Medical encyclopedia article on Blubber
- Wikipedia's article - Blubber
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