• semi-aquatic ⪢⪢
Semi-aquatic means that they live in the water part of the time and on land part of the time.
http://qindex.info/i.php?x=16457

○○○ 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

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