スミソニアン博物館さんのインスタグラム写真 - (スミソニアン博物館Instagram)「Say cheese! It's Smilodon fatalis. 🔎 You were all quick to recognize this saber-toothed cat, which used its sharp, curved canines to stab and tear into the flesh of their prey. One edge of their long teeth was serrated like a steak knife—an excellent tool for cutting flesh. This particular species roamed North America during the recent ice ages 28,200 to 13,000 years ago. We're grinning for the opening of @smithsoniannmnh's #DeepTime fossil hall TOMORROW. #FossilFriday」6月8日 0時27分