2,526wild facts you can’t un-know.

Mating swarms over streams in evening are a major trout food source — caddisfly imitation flies are a centerpiece of fly-fishing.

Eastern tent caterpillars build large silken 'tent' nests in the crotches of cherry and apple trees in spring — 200-300 caterpillars per tent.

Pregnant horses that eat the caterpillars or contaminated pasture spontaneously abort — Mare Reproductive Loss Syndrome.

The 2001 Kentucky MRLS outbreak caused 30%+ of the state foal crop loss and $336+ million in damage to the thoroughbred industry.

Caterpillars concentrate cyanogenic compounds from cherry leaf chemistry into their hemolymph and silk — making them toxic to horses that ingest them.

All caterpillars in a single tent are SIBLINGS from the same egg mass — sister-cooperation enables communal silk construction and predator defense.

Fall webworm webs envelop the END of a branch (vs. the eastern tent caterpillar in the CROTCH) — the easiest field-ID difference.

Caterpillars feed on over 600 documented host tree species — one of the broadest diets of any North American Lepidoptera.

Native to North America, the species was accidentally introduced to Hungary in the 1940s and to Korea in 1979 — now invasive across Europe and East Asia.

Damage is mostly cosmetic — trees usually recover fully in the following growing season. The webs look more alarming than they are.

Adult northern fall webworms are pure white — one of the only completely white moths in North America.

Giant leopard moth wings are pure white with bold round black hollow ring spots — resembling leopard markings.

Hidden under the wings: brilliant iridescent royal-blue and orange abdomen — dramatic warning coloration revealed when the moth opens her wings or plays dead.

She practices thanatosis — falls motionless to the ground when threatened, exposes the warning-colored abdomen, remains immobile for minutes.

Caterpillars are bristly black with red intersegmental bands — visually similar to the Pyrrharctia woolly bear and also cold-tolerant.

Caterpillars feed on over 100 documented host plant species — dandelion, plantain, cherry, willow, sunflower, and most garden plants.

Greater wax moth caterpillars can DIGEST POLYETHYLENE plastic — the same plastic in shopping bags and milk jugs.

The plastic-digesting ability was discovered ACCIDENTALLY in 2017 when a beekeeper-scientist noticed holes in a plastic bag holding wax moth larvae.

Wax moth caterpillars degrade polyethylene 40,000 times faster than environmental processes — potential biotechnology for plastic waste.

Wax moth is also one of the most damaging pests of European honey bee hives — larvae destroy comb if a colony weakens.

Researchers are still working out whether the polyethylene digestion is from larval enzymes, gut bacteria, or both — major active research area.

The diabolical ironclad beetle exoskeleton can support 39,000 times her body weight — equivalent to a human surviving 4 million tons of crushing force.

The elytra meet at a midline 'jigsaw puzzle' suture that distributes force across interlocking projections — the architecture inspires biomimetic aerospace materials.

She can survive being driven over by a car — the experimental confirmation that catalyzed the materials science research.

Insect collectors cannot pin this species with standard insect needles — the exoskeleton is too tough. Specimens must be drilled to mount.

The mottled gray-brown body shape and color closely match the bark of dead oak trees where the species lives — predator-deterring camouflage.

The Cuban headlight click beetle produces the brightest continuously-glowing terrestrial bioluminescence of any animal — over 30 millilumens.

Cuban silver miners reportedly used live beetles in glass jars as flashlights — bright enough to navigate narrow underground workings.

Pre-Columbian Taíno and Carib cultures bred and traded live cucujos as ornamental jewelry — women wore them in hair and dresses as living gems.

She has TWO color systems — green-yellow on the prothorax (continuous when active) and orange-red on the abdomen (only in flight).