
Caterpillars feed on rosaceous orchard trees — pear, apple, plum, walnut, almond — and develop over 6-8 weeks.
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Caterpillars feed on rosaceous orchard trees — pear, apple, plum, walnut, almond — and develop over 6-8 weeks.

Megarhyssa macrurus drills through 5-10 cm of wood with a 12 cm ovipositor — three times her body length — to lay eggs on horntail larvae.

Family Ichneumonidae contains over 25,000 described species — and possibly 100,000+ undescribed — making it the most species-rich animal family known.

Charles Darwin cited the ichneumon-host relationship in 1860 as proof against benevolent design in nature — 'feeding within the living bodies of caterpillars.'

She detects the hidden host by sensing the vibrations of its mandibles chewing wood — and by detecting fungal compounds the horntail uses.

The wasp larva eats the host from the inside out — killing it before pupating in the same tunnel and emerging next spring.

The io moth hides her dramatic eyespots under camouflaged forewings — flashing them only at the moment a predator closes in.

Io moth caterpillars have rows of toxic urticating spines — touching one produces a painful welt comparable to a wasp sting.

Males have bright yellow forewings, females have rust-red — among the most dramatic sexual color differences in temperate moths.

Like all giant silk moths, adults have no functional mouth and live just 4-7 days on caterpillar-stored reserves.

Caterpillars feed on over 100 documented host plant species — one of the broadest diet ranges in giant silk moths.

Leafcutter bees cut perfectly round 6 mm discs from leaves — so precise that early botanists blamed leaf-mining beetles.

M. rotundata is the dominant managed pollinator of US alfalfa seed production — a $5+ billion industry depends on her.

She works alfalfa flowers because she tolerates the 'tripping' staminal mechanism — honey bees learn to avoid alfalfa to escape getting smacked.

She rolls the leaf discs into cigar-shaped brood cell capsules — bottom disc, side walls, pollen-and-egg fill, top disc seal.

Leaf cutting causes essentially no damage to the source plant — the bee removes a small piece, then leaves.

One female mason bee pollinates as many fruit blossoms per day as 100 honey bee workers — the most efficient orchard pollinator on Earth.

Mason bees are solitary — no colonies, no queens, no workers. Every female builds her own nest.

Females partition nest tubes with walls of mud — each cell holds one egg, a pollen ball, and is sealed before the next is built.

Mason bees pollinate by 'belly-flopping' on flowers — pollen carried loosely on the underside of the abdomen falls onto every flower visited.

Mason bees are extraordinarily gentle — males have no sting at all, and females sting only when squeezed.

The Mexican red-knee is the cultural archetype of 'a tarantula' — featured in Indiana Jones, Dr. No, Home Alone, and countless other films.

Females live 25-30+ years — among the longest-lived spiders, longer than most pet dogs and cats.

The species has been CITES Appendix II listed since 1985 due to wild collection for the pet trade — modern legal trade is exclusively captive-bred.

Defensive response is rarely a bite — instead she brushes barbed urticating hairs from her abdomen at the threat, causing a painful itch on contact.

The bite is rare and medically minor — venom is about as severe as a bee sting.

Portia spiders are widely cited as the smartest invertebrates on Earth — capable of multi-step planning, detour navigation, and trial-and-error learning.

Portia plucks the prey's web in different rhythms until she finds a vibration that draws the resident out — clear trial-and-error learning, not fixed reflex.

Portia routinely takes 1-3 hour detours through vegetation that require LOSING SIGHT of the prey — using working memory to track the prey's location.

Portia specializes in hunting other spiders — including web-building species 10x her size — and tailors her tactics to each target species.