anthemaniac writes "Last year scientists recovered soft tissue from a T. rex. Now LiveScience is reporting that researchers have found fossilized bone marrow, the first discovery this this type of soft tissue, in frog and salamander fossils dating back 10 million years. Since the bone marrow was discovered 'in an environment vastly different form the one in which the T. rex soft tissue was found,' scientists now hope they'll find soft tissue in other environments and maybe from ancient mammals."
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