相比恐龙等远古生物，这些生活在更新世（从2,588,000年前到11,700年前）的动物更让我感兴趣。

1 "Sabretooth"

Smilodon is shown as an apex predator. It is depicted defeating Dire wolves, living in prides and killing even mammoths.

主要研究剑齿虎怎么捕食：不用剑齿撕咬喉管的话，摔跤？

2 "Dire Wolf"[1]

The savage dire wolf was the largest wolf on the planet. It is shown hunting down bison in large packs.

主要类比现代灰狼。

3 "Giant Bear"[2]

Arctodus simus, the giant short-faced bear, was the largest mammalian carnivore ever to walk the Earth. The bear is shown defeating Smilodon and Megalonyx, and scaring off dire wolves.

猜想：是个吃腐肉的大骆驼。

考虑到一万年前，这三者可能因为人类的入侵而纷纷灭绝（在一千年的时间里），《与狼共舞》里对欧洲猎手导致北美野牛灭绝的抨击就非常有意思了。

4 "Monster Shark"

The huge, powerful shark C. megalodon is shown subsisting on a diet of whales.

5 "Terror Raptor"[3]

The huge terror birds of South and North America, Kelenken and Titanis, are both shown as apex predators. Kelenken is shown to eat Homalodotherium, the glyptodont Parapropalaehoplophorus, and rodents, and Titanis is shown coming into competition with additional predators Smilodon gracilis and Canis edwardii, and is also shown to eat horses.

看完恐鸟那集我做了个梦，梦见我妹子被恐鸟``锤死''（看了都知道）吃了。然后我去质问它，它却理解不了我妹子对我的重要性，觉得自己只是捕猎了an average person.

6 "Killer Pig"[4][5]

Archaeotherium was the largest and more powerful beast of the badlands, and evolved into the even larger Daeodon (or Dinohyus).

完齿猪

7 "Razor Jaws"

The only animal who would attack an Archaeotherium was Hyaenodon, with its powerful razor jaws.

超级鬣狗