一只被鹰杀死的山河狸 © Steve Redman (MORA) / Wikimedia Commons 令人困惑的是，山河狸不是河狸。它们也不仅仅生活在山上。

North America is home to thousands of different species: big, small, hairy, slimey, fluffy, and stinky. They all work together in a complex and beautiful unison, but these 43 animals listed here have ...