Nature.

Nature

Expedition Killer Whale

Scientists and filmmakers explore the icy waters of Antarctica to observe how killer whales hunt. (60 minutes)

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UPCOMING EPISODES

Wed, 6/17 at 7:00 pm on Austin PBS HDTV

WildHeart

The 500-year-old Scots pine tree serves as the long-lived forest keeper of Scotland's wild Highland landscape. (60 minutes)

Thu, 6/18 at 12:00 am on Austin PBS HDTV

WildHeart

The 500-year-old Scots pine tree serves as the long-lived forest keeper of Scotland's wild Highland landscape. (60 minutes)

Thu, 6/18 at 3:00 am on Austin PBS HDTV

WildHeart

The 500-year-old Scots pine tree serves as the long-lived forest keeper of Scotland's wild Highland landscape. (60 minutes)

Sun, 6/21 at 4:00 am on Austin PBS HDTV

WildHeart

The 500-year-old Scots pine tree serves as the long-lived forest keeper of Scotland's wild Highland landscape. (60 minutes)

Sun, 6/21 at 3:00 pm on Austin PBS HDTV

WildHeart

The 500-year-old Scots pine tree serves as the long-lived forest keeper of Scotland's wild Highland landscape. (60 minutes)

Wed, 6/24 at 7:00 pm on Austin PBS HDTV

American Horses

The history of unique American horse breeds, including the mustang, Appaloosa, Morgan and quarter horse, that helped shape the nation and the people who continue the tradition of caring for them. (60 minutes)