A typical teenager’s stroll: Carrying a baby and dodging mammoths

What could make you walk miles across a landscape full of Ice Age predators, all alone except for the toddler you're carrying? Archaeologists recently discovered a long trail of footprints left behind by someone brave enough-or desperate enough-to undertake the journey.

Sometime between 10,000 and 15,000 years ago, a rather small person, probably a young teen or a short adult woman, walked quickly across the Pleistocene landscape. Mammoths and a giant ground sloth crossed the tracks in the travelers' wake, trampling some of the footprints. People at ancient White Sands usually moved in groups, which often included a mix of ages and genders, based on the other trackways at the site. But for some reason, this person set out alone-almost.

The person's gait is uneven, as if they were carrying a load on their left hip. And three spots along the northbound trail reveal what that load must have been: a toddler, probably around three years old. The child's small feet left their own tracks when their guardian set them down just long enough to rest or switch arms.

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