mammal

○○○ rodent ⪢⪢
The largest rodents in North America and the second largest rodents in the world, beavers are semi-aquatic mammals.
http://qindex.info/i.php?x=15779

• anatomy & physiology
-- animalia, chordata, vertebrata, mammalia, primates, hominidae, homo sapiens, phylum
http://qindex.info/i.php?x=4363

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