Skip to Main Content

Silkworms Spin Cocoons That Spell Their Own Doom

Those precious silk garments in your closet were made by the caterpillars of a fuzzy white moth – thousands of them. Silkworms spin a cocoon with a single strand of silk up to 10 city blocks long. Humans have bred these insects into weaving machines that can no longer survive in the wild.

Season 9 Episode 7 Length 05:13 Premiere: 05/17/22

Recent Episodes

I Simulated Insect Vision and It Got WEIRD

S12 E19 Length 10:17 Premiere Date 02/17/26

Hide! 4 Tiny Animals That Go Undercover In Style

S12 E15 Length 15:28 Premiere Date 01/22/26

Build, Borrow, or Steal: 4 of Nature’s Weirdest Homeowners

S12 E14 Length 16:18 Premiere Date 01/06/26

This Stick Insect Has a Peppermint-Scented Secret Weapon

S12 E16 Length 04:46 Premiere Date 12/09/25

Save The Grapes! Enter The Mealybug Destroyer!

S12 E12 Length 03:57 Premiere Date 11/14/25

Pick Your Player: Dragonfly vs Damselfly

S12 E11 Length 04:30 Premiere Date 10/07/25

Season 9 Season 9 Episodes

Show Episodes

Show Clips & Previews

Citrus Psyllids Bribe Ants With Strings Of Candy Poop

S9 E17 Length 05:04 Premiere Date 12/13/22

How Hoverflies Spawn Maggots that Sweeten Your Oranges

S9 E16 Length 04:20 Premiere Date 11/22/22

Meet the Meat Bee... the Western Yellowjacket!

S9 E15 Length 03:37 Premiere Date 11/01/22

This Parasite is Cramping The Monarch Butterfly’s Style

S9 E14 Length 05:04 Premiere Date 10/11/22

Fire Ants Turn Into a Stinging Life Raft to Survive Floods

S9 E13 Length 04:14 Premiere Date 09/27/22

Backswimmer Insects Drag Prey Into the Upside Down

S9 E12 Length 03:57 Premiere Date 08/30/22

Watch Barn Owls Swallow Rodents Whole

S9 E11 Length 04:55 Premiere Date 08/09/22

Stop! Thief! Carpenter Bees are Notorious Nectar Robbers

S9 E10 Length 04:02 Premiere Date 07/19/22

Don't Go Chasing Water Bugs

S9 E9 Length 03:49 Premiere Date 06/28/22

This Freaky Fruit Fly Lays Eggs in Your Strawberries

S9 E8 Length 04:33 Premiere Date 06/07/22

Silkworms Spin Cocoons That Spell Their Own Doom

S9 E7 Length 05:13 Premiere Date 05/17/22

Barnacles Go To Unbelievable Lengths to Hook Up

S9 E6 Length 03:58 Premiere Date 04/26/22

Honeypot Ants Turn Their Biggest Sisters Into Jugs of Nectar

S9 E5 Length 04:36 Premiere Date 04/05/22

The Vinegaroon Sprays Acid to Foil Its Foes

S9 E4 Length 04:25 Premiere Date 03/15/22

This Mushroom Fakes Its Own Death To Trick Flies

S9 E3 Length 04:31 Premiere Date 02/22/22

Flying Termites Take a Dangerous Journey to a New Life

S9 E2 Length 05:12 Premiere Date 02/01/22

Australian Walking Stick Insects Are Three Times Weirder Than You Think

S9 E1 Length 04:59 Premiere Date 01/11/22

See All Episodes

TV Schedules

Upcoming

No upcoming airdates

Recent

No recent airdates