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Unique Adaptations may Explain Bats' Resistance to Viruses

The heartbeats of some species of flying bat can reach 1,066 beats per minute. Could this level of activity — unrivaled by any other mammal — help explain bat super immunity?
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Clip Season 48 Episode 10 Length 03:02 Premiere: 09/15/21

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Season 48 Episodes

Edible Insects
S48 E14 Length 53:28 Premiere Date 10/20/21

Particles Unknown
S48 E12 Length 53:28 Premiere Date 10/06/21

The Cannabis Question
S48 E11 Length 53:36 Premiere Date 09/29/21

Looking for Life on Mars
S48 E2 Length 53:46 Premiere Date 02/24/21

Bat Superpowers Preview
Preview Length 00:30 Premiere Date 09/15/21

Why are Bats Tolerant of the Diseases They Carry?
Clip Length 02:34 Premiere Date 09/15/21

Unique Adaptations may Explain Bats' Resistance to Viruses
Clip Length 03:02 Premiere Date 09/15/21

GameStop, Reddit, and the Rise of Risky Trades
Clip Length 08:35 Premiere Date 04/27/21

Texas' Power Grid Trouble is Far From Over
Clip Length 08:23 Premiere Date 03/20/21

The Big Lie about Monarch Butterflies
Clip Length 09:25 Premiere Date 03/15/21

Origins of Misinformation and How it Spreads
Clip Length 05:47 Premiere Date 03/15/21

How Mask-Wearing Misinformation Became a Reality
Clip Length 05:38 Premiere Date 02/23/21

Dream Hacking: Decisions, Addictions, and Sleep
Clip Length 14:34 Premiere Date 02/18/21

Why Misinformation Matters
Clip Length 02:41 Premiere Date 02/11/21

Lingering Symptoms from COVID-19 are “Unprecedented”
Clip Length 05:05 Premiere Date 02/04/21

New COVID-19 Variants Spread More Easily
Clip Length 07:15 Premiere Date 02/04/21

This University Monitors COVID-19 Through Saliva Testing
Clip Length 06:53 Premiere Date 01/15/21

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Stone Age Temple Mystery - S53 E6

New evidence sheds light on Turkey's Gobekli Tepe, the world's oldest temple, and how archaeologists think about the roots of civilization.

  • Sunday March 1, 2026 7:00 pm ET on KET2
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  • Tuesday March 3, 2026 4:00 am CT on KET2

The Planets: Mars - S46 E13

Premiered On: 07/24/2019

Mars was once a blue water-world studded with active volcanoes. But when its magnetic field and protective atmosphere faded, it became the frozen desert planet we know today. With so many necessary elements in place, did life ever form on Mars?

  • Thursday March 12, 2026 4:30 pm ET on KET
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Pompeii's Secret Underworld - S52 E5

Archaeologists uncover new truths about Pompeii, a wealthy Roman playground with dark secrets.

  • Wednesday March 18, 2026 9:00 pm ET on KET
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Baltimore Bridge Collapse - S52 E6

Explores the March 2024 collapse of the Francis Scott Key Bridge in Baltimore, a busy four-lane bridge that served as a crucial link in the global shipping chain on the U.S. Eastern Seaboard.

  • Wednesday March 25, 2026 9:00 pm ET on KET
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Stone Age Temple Mystery - S53 E6

  • Friday February 27, 2026 2:00 am ET on KET
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Building the Eiffel Tower - S51 E3

  • Tuesday February 24, 2026 5:00 am ET on KET2
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Mammal Origins - S53 E4

  • Tuesday February 17, 2026 5:00 am ET on KET2
  • Tuesday February 17, 2026 4:00 am CT on KET2
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Can Dogs Talk? - S53 E3

  • Tuesday February 10, 2026 5:00 am ET on KET2
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Angkor: Hidden Jungle Empire - S53 E2

  • Tuesday February 3, 2026 5:00 am ET on KET2
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Asteroids: Spark of Life? - S53 E1

  • Tuesday January 27, 2026 5:00 am ET on KET2
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