Pussy willow, Salix discolor, can you tell I'm pleased that spring has arrived. #springflowers

Another early flowerer, Cornelian cherry (Cornus mas) on the unrelated Cornell campus, a small Eurasian dogwood tree that produces edible red fruits in autumn; typically highly tannic until they fall on the ground. #springflowers

Hepatica acutiloba, sharp-lobed hepatica, (Ranunculaceae), one our first ephemerals, these in the flood plane forest next to 6-mile Creek in Ithaca

Open postdoc position in my lab at Cornell, conducting comparative and experimental studies on transcriptomic responses to diet and toxins, utilizing the milkweed-insect community. Background in molecular bio & herbivory desired. academicjobsonline.org/ajo/jobs/31867

Prof. Juan Núñez Farfán and I are co-editing a special issue in the journal Insects, titled 🔴Evolutionary and Ecological Mechanisms of Plant Defense against Insects🔴. We are looking for original work that explores the links between plant defense and insect herbivory! Please see more details below!

Flatbacked #millipede I think, cruising unmolested amidst this #ant colonynon the move in Costa Rica. A #parasite, I guess?

Watch the Extraordinary Caterpillar film trailer! homegrownnationalpark.org/extraordinar...

Milkweed seeds, still dispersing

Cardenolide toxin diversity impacts monarch butterfly growth and sequestration doi.org/10.7554/eLif...

Oak Galls Exhibit Ant Dispersal Convergentwith Myrmecochorous Seeds par.nsf.gov/servlets/pur...

Earlier on the expedition we found the most beautiful flower, and here, my friends, is the biggest: Rafflesia arnoldi seen in full bloom today in the Sumatran jungle. This is the largest flower on earth and one of the greatest wonders of the natural world.

#Monarch #butterfly tagging advances in the NY Times, they are arriving in #Mexico www.nytimes.com/2025/11/17/s...

A mentor, Spencer Barrett, and mentee, Marc Johnson - 20 years apart

Part of a large patch of Devil's Fingers fungus (aka Octopus Stinkhorn) in Rye, East Sussex. I smelt them before I saw them. An intense bouquet of rotting flesh to attract insects that then help spread spores. Brilliant! @sussexwildlife.bsky.social #fungi #mycology #UKwildlife

A theory of life: www.cornellsun.com/article/2025...

The wooly bear, or #Isabella tiger #moth #caterpillar, Pyrrharctia isabella, still looking for overwintering spots on warm days. I'm still collecting them for research. Many years ago I became allergic to the hairs, a painful reminder of my love gone sour: agrawal.eeb.cornell.edu/2018/11/24/c...

By popular demand, I'm offering "More #MONARCHS - No #Monarchy!" shirts and mugs at cost (no profit, just joy). Spread the word, decent quality for <$20 monarchs.printful.me #NoKings #butterfly #peace #naturalhistory #plantinsect

🕷️ Britain’s craziest creature? Meet Megabunus diadema — a harvestman with eyes on a spiky turret! Not a spider, but part of its own Order: Opiliones. Learn more in our UK Harvestmen webinar on 5 Feb 2026: 🔗 www.eventbrite.co.uk/e/1720584467... @britishspiders.bsky.social @megabunus.bsky.social

I am an author being overwhelmed by emails from people offering their services to promote my new book. This is a brand new problem, and I do not have an agent or publicist to sift through the offers. Help? #writingcommunity #authors

Red oak fall colors

Witch hazel, Hamamelis virginiana, Hamamelidaceae in the Saxifragales, now in #flower around #Ithaca

The maple leaf #Viburnum, when not eaten by deer #ithaca #fruit #naturalhistory

My monkey slug getting ready to transform to hag moth, Phobetron pithecium Limacodidae

Pear rust's spore-dispersing bodies... This #fungus, Gymnosporangium sabinae, is an obligate host - alternating #parasite (like many fungi and aphids) - alternate host = juniper

New biology: stink bugs inoculate their eggs with a fungus that protects them from parasitoids www.sciencemagazinedigital.org/sciencemagaz...

Melampyrum pratense has a huge distribution across Europe to central Siberia thanks to ants. It has myrmecochorus seeds—seeds carried by ants—unlike most holo- and hemiparasitic species, which have wind-dispersed seeds. #parasite #Orobanchaceae #Botany 🌾🧪🌱

Monkey slug caterpillar, or "hag #moth" Phobetron pithecium. A late season Limacodidae of eastern forests, A generalized feeder of mostly blue plants Courtesy of Sam Jaffe and the amazing #caterpillar lab in New Hampshire! www.thecaterpillarlab.org

Matelea cyclophylla, a vining succulent #milkweed vine with a corky #caudex from western Mexico, hairy burgundy #flowers

Two more Asclepiadoideae (among 3000 #milkweed species), a Hoya and Cynanchum - every thing comes in fives #flower #oldworld

Hoodia and Huernia, two Ascleps flowering in my house

Two pairs of wild turkeys in Cambridge, Mass

Why I tried whale meat www.cornellsun.com/article/2025...

Echinopsis tubiflora an Argentinian endemic Cactaceae, night blooming, open <18 hours (120x = 2 hours) #timelapse #cactus #flower #sweetsmell

Scaldweed, Cuscuta gronovii, a native annual non-photosynthetic #parasitic #plant - haustoria instead of roots; shares #herbivores with its host plants (you are what you eat) - but a #flowering plant nonetheless. Most plant communities have several distantly related species of parasitic angiosperms

Temnothorax sp., a small #ant that lives in colony in acorns (and in #galls formed on #oaks

Galling #aphids on staghorn sumac make plump succulent galls full of aphids and predators - near Watertown, NY

I've been seeing more of the Jerusalem artichoke Helianthus tuberosus around the great lakes region. This is from the sandy east shores of Lake Ontario. Said to be native, I wonder if it's being planted more and spreading?

The American searocket, Cakile edentula, a sand loving semi-succulent #Brassicaceae. I knew this plant from the west coast; here on the shores of lake Ontario. Fruits have two-parts, one that breaks off and floats for water dispersal. immature silliques are edible, like radish pods

A leaf mining #moth on a quaking Aspen, caterpillar apparently secretes cytokinins which suppress senescence in leaf sectors. Adaptive for the moth? #fallcolors

Important new paper: www.frontiersin.org/journals/eco...

A baby sidewinder's tracks tell the story of the last few minutes. First, an elegant change in direction and in sidewinding handedness, like the jibe of a sailboat. Then a startled squiggle as it realizes it's being followed. Mojave Desert Sidewinder - Crotalus cerastes cerastes #herps

And next to the #orchid, pondside, abundant greater fringed gentians, Gentianopsis crinita, a spectacular biennial; reproductive parts heavily attacked by a plume moth. After 3 years of trial & error, we finally have a means to germinate seeds and study them in natural populations and common gardens

Nodding lady's tresses (Spiranthes cernua), a late summer flowering #orchid, abundant at pond's edge in #Ithaca, said to be fragrant, but I forgot to smell

Kleinia pendula (formerly in #Senecio) - the inchworm plant from NE Africa. A rayless creeping #succulent #aster (w/ red flowers)... here with the aphid, #Aphis nerrii, in Ithaca; I usually think of A. nerrii as a specialist on #Apocynaceae (but there are several reports on asters) #herbivory

Highland #milkweed from Bolivia, #Asclepias barjoniifolia #flowers

A male large tolype #moth (or velleda lappet moth), Tolype velleda, an eastern north american tree leaf feeder (as caterpillar). Adults do not have mouth parts - no feeding, just flying and mating. Note one feathery antenna: high surface area to pick up on female-produced pheromones

Beech drops, Epifagus virginiana (Orobanchaceae), non-photosynthetic & #parasitic, feeds from beech tree roots. Flowering in an old-growth pine forest. Has a ridiculous life-cycle, including both cleistogamous & chasmogamous #flowers, possible #ant #pollination, etc. wikipedia.org/wiki/Epifagus

The smokey-winged aspen #aphid, Chaitophorus populicola, seen on eastern #cottonwood streamside in Ithaca, NY, tended by #ants. After a summer of clonal reproduction, sexually produced eggs over winter, often in crevices on their host trees #mutualism