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Are lions the most intelligent cat?

Dr. Natalia Borrego works with lion whisperer Kevin Richardson to carry out lion IQ tests. She believes that they are the smartest of all the cats.
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Clip Season 37 Episode 3 Length 02:51 Premiere: 11/07/18

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Season 37 Season 37 Episodes

American Spring LIVE: Episode 3 - Connections
S37 E15 Length 55:11 Premiere Date 05/01/19

American Spring LIVE: Episode 2 - Migration
S37 E14 Length 55:12 Premiere Date 04/30/19

American Spring LIVE: Episode 1 - Birth and Rebirth
S37 E13 Length 55:16 Premiere Date 04/29/19

Why Citizen Science - Sarah Edmunds
Clip Length 01:39 Premiere Date 10/04/19

Why Citizen Science - Mary Mooney
Clip Length 02:23 Premiere Date 10/04/19

Why Citizen Science - Mara Davi Gaines
Clip Length 03:40 Premiere Date 09/20/19

Citizen Science Story: The New York Botanical Garden
Clip Length 02:33 Premiere Date 09/13/19

Why Citizen Science - George Gurgis
Clip Length 01:56 Premiere Date 09/13/19

Citizen Science Story: Project TRUE
Clip Length 03:53 Premiere Date 09/06/19

Happy Valentine's Day From Nature
Clip Length 00:43 Premiere Date 02/12/19

Super Cats: Episode 3 | Science and Secrets | Preview
Preview Length 00:34 Premiere Date 11/07/18

Are lions the most intelligent cat?
Clip Length 02:51 Premiere Date 11/07/18

The Truth About Tiger Populations
Clip Length 02:43 Premiere Date 11/07/18

NATURE Season 37 Preview
Preview Length 03:19 Premiere Date 10/24/18

NATURE's Summer of Love!
Preview Length 00:32 Premiere Date 06/05/18

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Becoming Elephant: The Orphans of Reteti, Graduation Day - S44 E12

Orphaned elephants learn how to survive with the challenges of the dry season.

  • Wednesday April 15, 2026 8:00 pm ET on KET
  • Wednesday April 15, 2026 7:00 pm CT on KET
  • Friday April 17, 2026 1:00 am ET on KET
  • Friday April 17, 2026 12:00 am CT on KET
  • Friday April 17, 2026 5:00 pm ET on KET
  • Friday April 17, 2026 4:00 pm CT on KET

Legendary Tigers of India - S44 E13

Tiger expert Valmik Thapar uncovers 50 years of archival footage chronicling the tiger clan of northwestern India's Ranthambore National Park.

  • Wednesday April 22, 2026 8:00 pm ET on KET
  • Wednesday April 22, 2026 7:00 pm CT on KET
  • Friday April 24, 2026 1:00 am ET on KET
  • Friday April 24, 2026 12:00 am CT on KET
  • Friday April 24, 2026 5:00 pm ET on KET
  • Friday April 24, 2026 4:00 pm CT on KET

Woodpeckers: The Hole Story - S41 E3

With over 240 species of woodpeckers identified, explore their unique evolutionary journey and the powerful role they play in every ecosystem except Antarctica and Australia.

  • Wednesday April 29, 2026 8:00 pm ET on KET
  • Wednesday April 29, 2026 7:00 pm CT on KET
  • Friday May 1, 2026 1:00 am ET on KET
  • Friday May 1, 2026 12:00 am CT on KET
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Becoming Elephant: The Orphans of Reteti, Baby Steps - S44 E11

  • Friday April 10, 2026 5:00 pm ET on KET
  • Friday April 10, 2026 4:00 pm CT on KET
  • Friday April 10, 2026 1:00 am ET on KET
  • Friday April 10, 2026 12:00 am CT on KET
  • Wednesday April 8, 2026 8:00 pm ET on KET
  • Wednesday April 8, 2026 7:00 pm CT on KET

Raptors: A Fistful of Daggers: Extreme Lives - S42 E10

  • Friday April 3, 2026 5:00 pm ET on KET
  • Friday April 3, 2026 4:00 pm CT on KET
  • Friday April 3, 2026 1:00 am ET on KET
  • Friday April 3, 2026 12:00 am CT on KET
  • Wednesday April 1, 2026 8:00 pm ET on KET
  • Wednesday April 1, 2026 7:00 pm CT on KET

Raptors: A Fistful of Daggers: Meet the Raptors - S42 E9

  • Friday March 27, 2026 5:00 pm ET on KET
  • Friday March 27, 2026 4:00 pm CT on KET
  • Friday March 27, 2026 1:00 am ET on KET
  • Friday March 27, 2026 12:00 am CT on KET
  • Wednesday March 25, 2026 8:00 pm ET on KET
  • Wednesday March 25, 2026 7:00 pm CT on KET

Portugal: Wild Land on the Edge - S40 E11

  • Friday March 20, 2026 5:00 pm ET on KET
  • Friday March 20, 2026 4:00 pm CT on KET
  • Friday March 20, 2026 1:00 am ET on KET
  • Friday March 20, 2026 12:00 am CT on KET
  • Wednesday March 18, 2026 8:00 pm ET on KET
  • Wednesday March 18, 2026 7:00 pm CT on KET

Parenthood: The Greatest Adventure - S44 E10

  • Friday March 13, 2026 4:30 pm ET on KET
  • Friday March 13, 2026 3:30 pm CT on KET
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