Fossil Ichthyosaur Blubber Is Evidence They Were Warm-Blooded


A roughly 180-million-year-old ichthyosaur fossil includes preserved skin, with pigmentation, and blubber. (Credit: Johan Lindgren)

For the first time, researchers have identified blubber, and other soft tissue, preserved in an Early Jurassic ichthyosaur. The new interpretation of the 180-million-year-old fossil suggests that the extinct…

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