[ad_1] 10 million-year-old frog from Libros, Spain, showing dark internal melanosomes in the thoracic cavity and paws. Credit: Museu Nacional de Ciencias Naturales, Madrid, Spain A team of paleontologists, led by University …
Read More »[ad_1] 10 million-year-old frog from Libros, Spain, showing dark internal melanosomes in the thoracic cavity and paws. Credit: Museu Nacional de Ciencias Naturales, Madrid, Spain A team of paleontologists, led by University …
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