Nature

Hippos: Africa's River Giants

David Attenborough narrates a look at hippopotamuses as they protect their families, face their enemies, and contend with a drought. (60 minutes)

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UPCOMING EPISODES

Sun, 10/26 at 4:00 am on Austin PBS HDTV

A paleontologist embarks on an Arctic adventure to see how the walrus copes as the sea ice melts. (60 minutes)

Sun, 10/26 at 5:00 pm on Austin PBS HDTV

A paleontologist embarks on an Arctic adventure to see how the walrus copes as the sea ice melts. (60 minutes)

Wed, 10/29 at 7:00 pm on Austin PBS HDTV

Female mountain lion Willow and her kittens interact with the forest ecosystem in Montana's Sapphire Mountains. (60 minutes)

Thu, 10/30 at 1:00 am on Austin PBS HDTV

Female mountain lion Willow and her kittens interact with the forest ecosystem in Montana's Sapphire Mountains. (60 minutes)

Sun, 11/2 at 3:00 am on Austin PBS HDTV

Female mountain lion Willow and her kittens interact with the forest ecosystem in Montana's Sapphire Mountains. (60 minutes)

Sun, 11/2 at 4:00 pm on Austin PBS HDTV

Female mountain lion Willow and her kittens interact with the forest ecosystem in Montana's Sapphire Mountains. (60 minutes)