Extras

Video thumbnail: NOVA Determined: Fighting Alzheimer's Preview

NOVA

Determined: Fighting Alzheimer's Preview

Follow three women enrolled in a new study to try to prevent Alzheimer’s.

Determined: Fighting Alzheimer's Preview

Video thumbnail: NOVA Depression Can Affect Memory—and Mirror Signs of Alzheimer's

NOVA

Depression Can Affect Memory—and Mirror Signs of Alzheimer's

Exercise may help depression patients regain memory.

Depression Can Affect Memory—and Mirror Signs of Alzheimer's

Video thumbnail: NOVA The Evolution of Prosthetic Leg Technology

NOVA

The Evolution of Prosthetic Leg Technology

Amputation procedures haven't changed much since the Civil War era.

The Evolution of Prosthetic Leg Technology

Video thumbnail: NOVA Why Wombats Poop Cubes

NOVA

Why Wombats Poop Cubes

Biologists and engineers solve a major marsupial mystery.

Why Wombats Poop Cubes

Video thumbnail: NOVA Increasing Access to Brain-Controlled Prosthetics

NOVA

Increasing Access to Brain-Controlled Prosthetics

Bionic interventions might allow people to one day design their own limbs.

Increasing Access to Brain-Controlled Prosthetics

Video thumbnail: NOVA How Neanderthals Came to Inhabit Northwest Europe

NOVA

How Neanderthals Came to Inhabit Northwest Europe

Stone tools reveal that four species of human have occupied Britain.

How Neanderthals Came to Inhabit Northwest Europe

Video thumbnail: NOVA Climbers Tell Story of Mt. Washington Climbing Accident

NOVA

Climbers Tell Story of Mt. Washington Climbing Accident

Climbing partners have a harrowing experience on Mount Washington in NH.

Climbers Tell Story of Mt. Washington Climbing Accident

Video thumbnail: NOVA Augmented Preview

NOVA

Augmented Preview

An ingenious new technology allows prosthetic legs to move and feel like the real thing.

Augmented Preview

Video thumbnail: NOVA The Mammoth Species You've Never Heard Of

NOVA

The Mammoth Species You've Never Heard Of

These bones could have belonged to some of the last surviving steppe mammoths in Britain.

The Mammoth Species You've Never Heard Of

Video thumbnail: NOVA Great Mammoth Mystery Preview

NOVA

Great Mammoth Mystery Preview

Sir David Attenborough explores a site with traces of ancient mammoths and Neanderthals.

Great Mammoth Mystery Preview

Video thumbnail: NOVA Secrets in the Scat Preview

NOVA

Secrets in the Scat Preview

Join biologists on an ingenious hunt for the clues hidden in animal poop.

Secrets in the Scat Preview

Video thumbnail: NOVA Can Poop Help Protect Rhinos from Poachers?

NOVA

Can Poop Help Protect Rhinos from Poachers?

To “scatologists,” a pile of fresh scat in the wild is a treasure trove of information.

Can Poop Help Protect Rhinos from Poachers?

Video thumbnail: NOVA Portable Homes Help Communities Adapt to Climate Change

NOVA

Portable Homes Help Communities Adapt to Climate Change

See how one Alaskan community is dealing with the effects of rising Arctic temperatures.

Portable Homes Help Communities Adapt to Climate Change

Video thumbnail: NOVA What's Causing Water to Bubble in the Arctic?

NOVA

What's Causing Water to Bubble in the Arctic?

Scientists look for the source of large bubbles in an Arctic lake.

What's Causing Water to Bubble in the Arctic?

Video thumbnail: NOVA Arctic Sinkholes Preview

NOVA

Arctic Sinkholes Preview

In the Arctic, enormous releases of methane, a potent greenhouse gas, threaten the climate

Arctic Sinkholes Preview