Nature | Clash: Encounters of Bears and Wolves In Yellowstone National Park, two predators r... In Yellowstone National Park, two predators reign supreme: the grizzly bear and the wolf. (50:23)

Chapter(s) 1 - 6 of 6

• 1. 1.Spring Awakenings,
  2. 2.Fight or Flee?,
  3. 3.Family Circles,
  4. 4.Fierce Competition,
  5. 5.Grizzly Life,
  6. 6.A Tenuous Peace

• Duration: 50:23
  Copyright 2009 NGHT, Inc. and WNET.ORG Properties LLC
  TV Rating: TV-PG
  

Nature | Hummingbirds: Magic in the Air Hummingbirds are some of the toughest, most e... Hummingbirds are some of the toughest, most energetic creatures on the planet. (50:08)

Chapter(s) 1 - 6 of 6

• 1. 1.The Hummingbird Advantage,
  2. 2.Hummingbirds and their Flowers,
  3. 3.Hunting and Survival,
  4. 4.The Mating Game,
  5. 5.Nesting,
  6. 6.Migration and Conservation

• Duration: 50:08
  Copyright 2009 WNET.ORG
  TV Rating: TV-G
  

Nature | Fellowship of the Whales Follow a baby humpback whale as she travels f... Follow a baby humpback whale as she travels from Hawaii to Alaska, and back again. (50:38)

Chapter(s) 1 - 5 of 5

• 1. 1.A Whale Is Born,
  2. 2.Navigating Busy Waters,
  3. 3.The Journey North,
  4. 4.Alaskan Summer,
  5. 5.The Return to Hawaii

• Duration: 50:38
  Copyright 2009 WNET.ORG Properties LLC
  TV Rating: NR
  

Nature | Black Mamba The black mamba is one of Africa's most dange... The black mamba is one of Africa's most dangerous and feared snakes. (50:24)

Chapter(s) 1 - 6 of 6

• 1. 1.The Deadly Mamba,
  2. 2.The Snake Charmers,
  3. 3.Catching a Mamba,
  4. 4.Snake Surgery and Tragedy,
  5. 5.Tracking the Mambas,
  6. 6.A New Hope

• Duration: 50:24
  Copyright 2009 WNET.ORG Properties LLC and Tigress Productions Limited
  TV Rating: TV-PG
  

Nature | Cloud: Challenge of the Stallions In the third chapter of Cloud's saga, who wil... In the third chapter of Cloud's saga, who will rise to challenge the mighty wild stallion? (50:23)

Chapter(s) 1 - 6 of 6

• 1. 1.The Seasons of Cloud's Life,
  2. 2.Families and Threats,
  3. 3.Horses and the BLM,
  4. 4.Families in Turmoil,
  5. 5.Tracking Cloud,
  6. 6.Generations

• Duration: 50:23
  Copyright 2009 WNET.ORG Properties LLC
  TV Rating: NR
  

NOVA | Lizard Kings Meet the monitors, the largest, fiercest, and... Meet the monitors, the largest, fiercest, and craftiest lizards on Earth. (52:22)

Chapter(s) 1 - 6 of 6

• 1. 1.The Lizard Man,
  2. 2.Testing the,
  3. 3.Monster Monitor,
  4. 4.A Reptilian Success,
  5. 5.One Smart Cookie,
  6. 6.Footage on Four Feet

• Duration: 52:22
  Copyright 2009 Kaufmann Productions Pty Ltd, 2009 WGBH Educational Foundation All rights reserved
  TV Rating: TV-PG
  

Nature | The Loneliest Animals The loneliest animals are the most endangered... The loneliest animals are the most endangered species on the planet. (50:01)

Chapter(s) 1 - 4 of 4

• 1. 1.The Last of Their Kind,
  2. 2.A Desert Ark,
  3. 3.Dangers of Close Quarters,
  4. 4.In the Wild

• Duration: 50:01
  Copyright © 2009 WNET.ORG
  TV Rating: TV-PG
  

Nature | Frogs: The Thin Green Line It is the greatest mass extinction since the ... It is the greatest mass extinction since the dinosaurs. (50:31)

Chapter(s) 1 - 7 of 7

• 1. 1.Delicate and Diverse,
  2. 2.The Race to Understand Chytrid,
  3. 3.Chytrid is on the Move,
  4. 4.A Noah's Ark of Sorts,
  5. 5.Reports of Deformities,
  6. 6.A Way to Deal with Chytrid?,
  7. 7.Habitat Loss Plays a Role

• Duration: 50:31
  Copyright 2009 WNET.ORG
  TV Rating: TV-PG
  

NOVA | Rat Attack Why do huge swarms of rats overrun a bamboo f... Why do huge swarms of rats overrun a bamboo forest in India once every half-century? (52:46)

Chapter(s) 1 - 6 of 6

• 1. 1.A Force of Nature,
  2. 2.Seeds of Disaster,
  3. 3.A Most Versatile Plant,
  4. 4.A Frenzy of Hyper-Breeding,
  5. 5.Explosion Imminent,
  6. 6.Dodging a Bullet

• Duration: 52:46
  Copyright WGBH Educational Foundation
  TV Rating: TV-PG
  

Nature | Why We Love Cats and Dogs Relationships with cats and dogs are some of ... Relationships with cats and dogs are some of the longest and most intimate of our lives. (50:34)

Chapter(s) 1 - 5 of 5

• 1. 1.Cats vs. Dogs,
  2. 2.Jerry's Story,
  3. 3.The Interspecies Family,
  4. 4.Maybe you can herd cats...,
  5. 5.In Sickness and in Health

• Duration: 50:34
  Copyright 2009 WNET.ORG
  TV Rating: TV-PG