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These Silk-Swinging Caterpillars Will Ruin Your Picnic

California oak moth caterpillars eat all the leaves on an oak, leaving a brown skeleton. Then they rappel down on a strand of silk, twirling and swinging. If you were enjoying the shade, good luck getting out of their way. For the oak, the caterpillars are a bigger deal –– will the tree survive?
Season 8 Episode 1 Length 04:00 Premiere: 01/12/21

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Season 8 Episodes

These Swarming Locusts Are Grasshoppers Gone Wrong
S8 E20 Length 04:46 Premiere Date 11/23/21

How a Kissing Bug Becomes a Balloon Full of Your Blood
S8 E19 Length 04:58 Premiere Date 11/09/21

Skeleton Shrimp Use 18 Appendages to Feed, Fight and ... Frolic
S8 E18 Length 04:38 Premiere Date 10/26/21

Tadpole Shrimp Are Coming For Your Rice
S8 E17 Length 04:42 Premiere Date 10/12/21

You Can’t Unsee the Assassin Bug’s Dirty Work
S8 E16 Length 03:30 Premiere Date 09/28/21

These Rare Damselflies Find Love With a Twist in Fog City
S8 E15 Length 04:26 Premiere Date 09/14/21

Once a Spawn a Time: Horseshoe Crabs Mob the Beach
S8 E14 Length 04:51 Premiere Date 08/31/21

This Bee Builds Sandcastles at the Beach
S8 E13 Length 04:29 Premiere Date 08/10/21

The Axolotl Salamander Doesn’t Wanna Grow Up
S8 E12 Length 04:42 Premiere Date 07/13/21

These Feisty Hermit Crabs Brawl Over Snail Shells
S8 E11 Length 04:09 Premiere Date 06/15/21

The Pipevine Caterpillar Thrives in a Toxic Love Triangle
S8 E10 Length 05:03 Premiere Date 05/18/21

Scorpions Are Predators With a Sensitive Side
S8 E9 Length 03:56 Premiere Date 05/04/21

The Undying Hydra: A Mini-Monster That Defies Aging
S8 E8 Length 04:52 Premiere Date 04/20/21

Leaf Miner Fly Babies Scribble All Over Your Salad
S8 E7 Length 04:25 Premiere Date 04/06/21

Why Did the Mexican Jumping Bean Jump?
S8 E6 Length 04:15 Premiere Date 03/23/21

Born Pregnant: Aphids Invade With an Onslaught of Clones
S8 E5 Length 05:01 Premiere Date 03/09/21

Firebrats and Silverfish Are Rocking Some Old-School Looks
S8 E4 Length 04:36 Premiere Date 02/23/21

These Acrobatic Beach Hoppers Shred All Night Long
S8 E3 Length 04:11 Premiere Date 02/09/21

These Mites Rain Down To Save Your Strawberries
S8 E2 Length 04:12 Premiere Date 01/26/21

These Silk-Swinging Caterpillars Will Ruin Your Picnic
S8 E1 Length 04:00 Premiere Date 01/12/21

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