Nature.

Nature

Sharks of Hawaii

Nearly 40 shark species live in the warm waters of Hawaii's volcanic islands, including white tip reef sharks, Galapagos sharks and tiger sharks. (60 minutes)

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UPCOMING EPISODES

Wed, 2/5 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, 2/6 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, 2/6 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, 2/9 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, 2/9 at 4:00 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, 2/12 at 7:00 pm on Austin PBS HDTV

Expedition Killer Whale

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