| 释义 |
ground slothnounAn extinct terrestrial edentate mammal of the Cenozoic era in America, typically of very large size.- Order Xenarthra (or Edentata). See megatherium, mylodon.
In North America these included mammoths and mastodon, giant ground sloths, and glyptodonts....- The first North Americans lived side-by-side with elephant-like mammoths and mastodons, giant short-faced bears, sabre-toothed cats, tree-sized ground sloths and heavily armoured glyptodonts.
- We, furthermore, tested extracts from a cave bear from which endogenous bear sequences cannot be amplified and a Pleistocene ground sloth from South America using the same controls.
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