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The 37-million-year-old fossil bones were so large, experts thought they were boulders. They may have come from the heaviest animal that ever lived.
Now that researchers have uncovered a complete Arthropleura head, they hope the discovery can help them solve other riddles about the giant animal, including what it ate and how it breathed. But other fossils that preserve additional aspects of the arthropod’s body, including the head of an a...
Supposedly, the animal is just very active. The observation of wild leatherbacks has shown that they allow themselves only 0.1% of their day to rest. Practically non-stop swimming helps in producing muscle heat and this combined with the heat exchange network and a thick fat cover allows the ...
Which group of modern amphibians are most like prehistoric amphibians? What is the phylum of flatworms? What group of vertebrates is most closely related to birds? What phylum do bony fish belong to? What phylum are jellyfish in? What are the two body forms of cnidarians? What members of ...
the world's only exclusively freshwater seal. Scientists are unsure how the nerpa came to Lake Baikal and evolved, but they suspect the seals might have swum down a prehistoric river from the Arctic, according to LakeBaikal.org. Other endemic species include the oily, scaleless golomyanka fish...