Blubber is a thick layer of vascularized adipose tissue under the skin of all cetaceans, pinnipeds, penguins, and sirenians. It was present in many marine reptiles, such as ichthyosaurs and plesiosaurs.[1]
- ^ "Incredible Jurassic ichthyosaur fossil still has skin and blubber". Science. 5 December 2018. Retrieved 12 January 2024.