National Parks

The extent of an incredible dinosaur highway has been revealed in Bolivia. More than 16,000 footprints, along with tail impressions, have been fully documented – and the scale of theropod activity alone is unlike anything that's been seen before.

Life-sized papier-mâché birds are popping up in Wyoming's Grand Teton National Park, and they're quite a sight. By this we mean a sight you wouldn't want to see on a night hike. But there's more to these greater sage-grouse models than meets the eye.

Two lion siblings – one with only three legs – have set a daring new world record for long-distance swimming, paddling across a treacherous channel infested with crocodiles and hippos, on an epic life-or-death journey in search of female mates.

A new heavyweight hero has emerged from the waters of Brooks River to claim the title of summer fatty, conquering some sizeable competition among the bears of Alaska's Katmai National Park. For them, big is not just beautiful but crucial for survival.

Researchers have discovered the longest known set of fossilized human footprints, and they tell an amazing story. The tracks were left by a woman carrying a small child, rushing, and after a few hours she made a return journey – without the child.

A pledge made last year to forge millions of acres of new national parks for Chilean Patagonia has come to fruition, with President Michelle Bachelet today formalizing the handover of the largest private land donation in history.