Larger than any lion alive today, this would have been an awesome predator. These caves were probabl ...

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13,000 years ago, the ice age cheetah was the pronghorn's greatest enemy.在13,000年前的冰河时代，猎 ...

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The scene is set for a daily ice age drama. Only the very largest are safe now.这一场面在冰河时代每 ...

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And all this meat in one small area attract the scavenger, the short-faced bear. Led by his super se ...

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So let's go back in time, back 13,000 years to relive one day in the life of North America's great i ...

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Meanwhile, the ground sloth, like the mastodons, must eat most of the day to fuel its huge bulk. Thi ...

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Today, there is a group of larger visitors here, too. A herd of mastodons led by the matriarch have ...

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This triggered other dramatic changes. As sea levels dropped, so did the inland water tables. Florid ...

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Could it be that drastic water shortage was the reason for the mastodons' epic migrations? Another b ...

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Some of this ice age dung was found beneath the skull in the Aucilla. The dung contained plant remai ...

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But despite their name, the mighty Everglades did not exist during the ice age. So what did pre-hist ...

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They can grow more than two metres long and weigh as much as three men. But the giant tortoises of i ...

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It's likely giant ground sloths used their claws in a similiar way to hook branches and pull them wi ...

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This is the Virginia opossum, a tree dweller found throughout many of the southern states. It's the ...

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The cold climate conifer forests of the north displaced broadleaved woodlands. Plants and animals we ...

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But how did one man and a spear produce the huge force behind this blow? The answer lies with small ...

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But most significant of all, the jaguar has a tell-tale trademark. Instead of going for the neck or ...

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These holes are the unmistakable hallmark of a violent death. Their shape suggest they were made by ...

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But the glyptodont wasn't a reptile. So what was it? There is a relative of the glyptodont that's st ...

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At first sight, manatees might look like seals or dolphins. But in fact, some of their closest relat ...

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