Elizabeth Duncan 🐝🪰🔬🥼

@ejduncan.bsky.social

Associate Professor of Zoology @UniversityLeeds, Evolutionary Developmental Biologist. Interested in many things but mostly insects. Views are my own. She/Her. Was e_j_duncan on X.

Parental care, and more complex cooperative systems of care, have independently evolved in hundreds of animal lineages. In an article published today, we explore how these behaviors evolve 𝘢𝘵 𝘢 𝘮𝘰𝘭𝘦𝘤𝘶𝘭𝘢𝘳 𝘭𝘦𝘷𝘦𝘭l shorturl.at/g5OPw /1

Convergent evolution of a conserved molecular network underlies parenting and sociality - Nature Reviews Genetics

Kay et al. review evidence that parental care, and more complex social behaviour based on parental care, evolved in multiple species through the repeated co-option of members of a pleiotropic molecula...

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🌏 Biodiversity loss has deep-rooted causes—from power imbalances to short-term priorities. These shape indirect & direct drivers like land/sea use change, exploitation & climate change. Graphic from the IPBES #TransformativeChange Assessment ⤵️

An infographic showing the progression from underlying causes to environmental impacts across terrestrial, freshwater, and marine ecosystems. The diagram flows left to right through three main sections:

"UNDERLYING CAUSES" lists three core issues:

Disconnection from and domination over nature and people

Concentration of power and wealth

Prioritization of short-term, individual and material gains

"INDIRECT DRIVERS" includes four categories:

Demographic and sociocultural

Economic and technological

Institutions and governance

Conflicts and epidemics

"DIRECT DRIVERS" shows relative impact percentages across terrestrial, freshwater, and marine environments, represented by horizontal bars with color-coded segments for:

Land/sea use change (purple)

Direct exploitation (light purple)

Climate change (yellow)

Pollution (gray)

Invasive alien species (orange)

Others (light gray)

The right side features a circular illustration divided into terrestrial, freshwater, and marine zones with representative wildlife silhouettes.

What looked like a hearing organ on a tiny stinkbug’s leg turned out to be something far stranger: a fungal nursery that mother bugs use to coat their newly laid eggs in protective symbiotic hyphae, shielding their offspring from parasitic wasps. Learn more in Science: https://scim.ag/4nDrDNm

(A) An adult female in the field on Sicyos angulatus. (B) Back view of an adult female reared on cucumber, whose hindleg organs are covered with fungal hyphae (arrowheads). (C) Magnified image of the hindleg organ. (D to L) Morphology of hind tibia of adult male [(D) to (F)], immature adult female [(G) to (I)], and mature adult female [(J) to (L)]. [(D), (G), and (I)] Brightfield images. [(E), (H), and (K)] Scanning electron microscope (SEM) images. [(F), (I), and (L)] Magnified SEM images. (M to O) Peculiar behavior of egg-laying adult female. After laying each egg (M), the female rhythmically scratches the hyphae-covered hindleg organ with tarsal claws of the opposite hindleg (N) and then rubs the egg surface with the claws in a skillful manner (O). Also see movie S1. (P to R) Egg mass covered with fungal hyphae at 0-day (P), 3-day (Q), and 10-day (R) intervals after oviposition. Reddish color of 10-day eggs reflects the body color of developing nymphs inside.

Bees exhibition at World Museum Liverpool is beautiful! Wonderful perspectives on pollination and the lives of bees. Go and see it. After all, bees are furry, vegetarian wasps. I wish it could visit us at NHM London.

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#PrimatePost 🦧💧 Chimps pee when seeing others peeing! 💦 Contagious urination may have social implications for group cohesion, marking territory and long-distance travel - like when you ask your friends to pee before a long car ride! We do it too! 🧪 #science 🏺 #BioAnth www.cell.com/current-biol...

Socially contagious urination in chimpanzees

Onishi and colleagues report socially contagious urination in chimpanzees, whereby individuals synchronize urination with conspecifics.

cell.com

In a new Science study, researchers present CASTER, a tool that uses arrangements in DNA sequences known as site patterns to infer “species trees,” which are diagrams that depict the evolutionary relationships among species. Learn more:

CASTER: Direct species tree inference from whole-genome alignments

Genomes contain mosaics of discordant evolutionary histories, challenging the accurate inference of the tree of life. While genome-wide data are routinely used for discordance-aware phylogenomic analyses, due to modeling and scalability limitations, the...

scim.ag

Hurray! Some good news for bees at last. Our new government has followed the science, and refused the application by sugar beet farmers to use banned neonicotinoid pesticides.

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