Extras

Video thumbnail: NOVA Nature's Fear Factor Preview

NOVA

Nature's Fear Factor Preview

Can bringing predators—and fear—back into an ecosystem help restore its natural balance?

Nature's Fear Factor Preview

Video thumbnail: NOVA Lions Return to Mozambique's Gorongosa National Park

NOVA

Lions Return to Mozambique's Gorongosa National Park

Gorongosa National Park was once one of the most species-rich places in Africa.

Lions Return to Mozambique's Gorongosa National Park