Godoy et al. explored whether cooperation gives rise to mechanisms of coexistence that competition does not promote and found that cooperation promotes three unique mechanisms that diversify the pathways to coexistence. Read now ahead of print! www.journals.uchicago.edu/doi/10.1086/...

#Evol2026 attendees! Stop by the @uchicagopress.bsky.social booth to take advantage of a terrific sale on books: 30% off online orders with free shipping in the US. Grab a print-out or scan the QR code to browse our extensive list of titles!

Don't miss any of the ASN events at #evol2026 ! Here is a cheatsheet of ASN and tri-society events at the Cleveland meeting this year: www.amnat.org/announcement...

Effects of Herbivore-Induced Plant Volatiles on Behaviors and Reproduction in a Common Songbird by Delaitre et al. Available now ahead of print! www.journals.uchicago.edu/doi/10.1086/...

McKenzie et al. applied a novel pipeline to automate floral color phenotyping from community science photographs, supporting anecdotal evidence that Monarda fistulosa is deeper purple in western vs. eastern North America. Read now ahead of print! www.journals.uchicago.edu/doi/10.1086/...

Which traits matter for linking individuals to ecology? Rota et al. reveal that behavior and physiology often outpace form in predicting ecological responses from individual performance to community and ecosystem levels. Available now ahead of print! www.journals.uchicago.edu/doi/10.1086/...

Do chameleons evolve to match their habitats? Petford et al. reveal morphological convergence in Bradypodion lineages, suggesting habitat, not ancestry, drives morphology. Read now ahead of print! www.journals.uchicago.edu/doi/abs/10.1...

Alencar et al. use a macroevolutionary framework to reveal how environmental, life history, and geographical factors interact with thermal tolerance to shape the distribution of the most diverse lizard family from North America. Read now ahead of print! www.journals.uchicago.edu/doi/10.1086/...

Caro et al. investigate cognition and metacognition in wild great tit parents deciding which chick to feed. They found that parents change their minds frequently, and the decision time varies with decision complexity and urgency. Read now ahead of print! www.journals.uchicago.edu/doi/10.1086/...

Ma et al. discover that light & soil trumps crowding in young tropical tree growth, but here's the puzzle: while traits help species thrive in different habitats, they don't predict how they handle same-species interaction! Read now ahead of print! www.journals.uchicago.edu/doi/10.1086/...

ASN Address: The Evolutionary and Ecological Consequences of Cooperation Available now ahead of print! www.journals.uchicago.edu/doi/10.1086/...

In long-lived southern ground-hornbills, hot-dry conditions reduce reproductive success, but helpers offer no buffering effects. Middleton et al. highlight the role of life-history in shaping cooperative strategies. Available now ahead of print! www.journals.uchicago.edu/doi/10.1086/...

Pointy wings are thought to help migratory birds fly efficiently, but which bones and feathers are responsible? Pegan et al. describe morphological variation that contributes to hand-wing index, a common proxy for wing shape. Read now ahead of print! www.journals.uchicago.edu/doi/10.1086/...

What drives shorebird migration? Gutierrez-Zorrilla et al. reveal that climate seasonality, wing shape, & habitat use are key predictors. Novel modeling untangles inherited traits from ecological selection. Read now ahead of print! www.journals.uchicago.edu/doi/10.1086/...

🚨 Supersuckling Alert! 🚨 Galápagos sea lion moms are rewriting the rules of weaning! 🦭📢 Childs et al. reveal that mothers nurse their adult (5+ years!) offspring—even when those offspring are already reproducing! 🤯 Read now ahead of print! www.journals.uchicago.edu/doi/10.1086/...

Innes-Gold et al. found that both biotic factors like herbivory and abiotic factors like water temperature mediate the intriguing phenomenon of coral reef halos. Read now ahead of print! www.journals.uchicago.edu/doi/10.1086/...

What can goshawks teach us about how camouflage, behavior, and habitat protect seasonally color-molting prey? Recent findings suggest that brown prey may be less vulnerable to predation under climate change compared to white morphs. Read now ahead of print! www.journals.uchicago.edu/doi/10.1086/...

ASN Address: Pirates of the Caribbean (and Elsewhere): Three-Legged Lizards and the Study of Evolutionary Adaptation by Losos et al. Read now ahead of print! www.journals.uchicago.edu/doi/abs/10.1...

My Husband is Hot! – How having an attractive mate can provide tangible benefits to birds Summary & Analysis by Kaleigh Remick of “Females with Attractive Mates Gain Environmental Benefits That Increase Lifetime and Multigenerational Fitness” by Barron et al. www.amnat.org/an/newpapers...

The battle of the sexes may begin as early as conception! Summary & Analysis by Julia M. Dovi of “Female Embryos Are More Likely to Die than Males in a Wild Mammal” by Douhard et al. Read now! www.amnat.org/an/newpapers...

How Randomness Can Flip Evolution: New Study Uncovers Surprising Role of Population Noise Summary & Analysis by Tahirah Williams of “Eco-Evolutionary Dynamics for Finite Populations and the Noise-Induced Reversal of Selection” by Bhat et al. www.amnat.org/an/newpapers...

Weather the storm by spreading your investments: the benefits of bet-hedging Summary & Analysis by Xochitl Ortiz-Ross of “Shifting Precipitation Regimes Influence Optimal Germination Strategies and Population Dynamics in Bet-hedging Desert Annuals” by Cuello et al. www.amnat.org/an/newpapers...

How does environmental age affect chronological age-specific phenology and reproductive success senescence? Summary & Analysis by Shatarupa Sarkar of “Age-Specific Phenology & Reproductive Success Senescence Vary with Environmental Age in a Wild Bird” by Bonamour et al. www.amnat.org/an/newpapers...

Adapt or Freeze: How Harsh Winters Are Reshaping Bluebirds’ Survival Summary & Analysis by Baltazar González Chávez of “Natural Selection after Severe Winter Favors Larger and Duller Bluebirds” by Rolland et al. Read now! www.amnat.org/an/newpapers...

Better together: sibling cooperation matters! Burying beetle larvae consistently benefited from growing up with siblings, both with & without parents. Huber et al. show that sibling interactions can play a key role in the evolution of family life. Read now! www.journals.uchicago.edu/doi/10.1086/...

Are specializations evolutionary dead ends? Morrison et al. reveal that in bird carotenoid evolution, continuity and stability are two sides of the same coin. Read now ahead of print! www.journals.uchicago.edu/doi/10.1086/...

Artículo publicado antes de la impresión: "La centralidad de las aves en redes de interacción varía dentro de sus nichos climáticos" de Moulatlet et al. www.journals.uchicago.edu/doi/10.1086/... Artista: Roberto Ruiz, estudiante en maevolab.mx.

Love in the Time of Climate Change: The Fate of Nuptial Gift-Giving Behavior in Unpredictable Environments Read a summary and analysis by Ratna Karatgi of "Variability in precipitation weakens sexual selection for nuptial gifts in spiders" by Pavón-Peláez et al. www.amnat.org/an/newpapers...

Small Populations, Large Conservation Challenges: Turgeon et al. evaluate the relative influence of density-dependence, environmental conditions, and sporadic events on annual ungulate population growth. Summary & Analysis by Madeline Eppley! www.amnat.org/an/newpapers...

Golden Retriever Energy Helps Wild Dragons Navigate the Social Landscape: Class et al. found evidence for sex-specific associations between behavior, its predictability and fitness in wild Eastern water dragons. Summary & Analysis by Pooja Radhakrishnan: www.amnat.org/an/newpapers...