Results 1 to 10 of about 689 (88)

Inside a duck-billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia. [PDF]

Anat Rec (Hoboken)
Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Aureliano T, Ghilardi AM, Kaluza J, Martinelli AG.   +3 more
europepmc   +2 more sources

Controlling the Field: Memory, Labor, and Ethics in Oral Histories of Brazilian Human Genetics*. [PDF]

Ber Wiss
This article examines how oral histories of twentieth‐century human genetics in Brazil reveal the politics of memory of fieldwork. Through a comparative analysis of interviews with prominent geneticist Francisco M. Salzano and technician Girley V. Simões, who worked with him for most of his career, this study explores the narrative strategies each ...
Dent R, Vimieiro Gomes AC.
europepmc   +2 more sources

More Science Than Art: The First Botanical Garden in Portugal (c. 1650)

Renaissance Studies, EarlyView.
ABSTRACT Gabriel Grisley, a German physician, came to Portugal and founded a garden near the Xabregas River in Lisbon, during the 1610s under the Spanish kings' rule. In view of the utility a botanic garden represented for the kingdom, he was able to obtain a royal privilege from King João IV during the Restauration War against the Spanish (1640–1668).
Ana Duarte Rodrigues
wiley   +1 more source

Spatial Scale Modulates the Effect of Habitat Amount on Diversity Patterns of Arachnid Assemblages Across Different Brazilian Ecosystems

Journal of Biogeography, Volume 53, Issue 8, August 2026.
ABSTRACT Aim We evaluated how native vegetation cover influences the diversity of arachnid assemblages across multiple spatial scales in major Brazilian ecosystems. Location Brazil (Amazon and Atlantic rainforests, Cerrado savanna and Caatinga dry forest). Taxon Arachnida (Opiliones, Pseudoscorpiones and Scorpiones). Methods We sampled arachnids at 120
André F. A. Lira, Adriano M. DeSouza, Thayna R. Brito‐Almeida, Hugo L. L. Neves, Gilberto G. Rodrigues, Carlos Henrique De‐Oliveira‐Nogueira, Ubiratã F. Souza, Alessandra R. S. Andrade, Rafael G. Jansen, Ana Lúcia Tourinho, Leonardo S. Carvalho, Laís M. Pordeus, Henrique P. Cunha, Aleson A. Silva, Márcio F. Chaves, Everton Tizo‐Pedroso, Lucas R. C. Lima, Alysson H. A. Lins, César M. A. Correa, Renato P. Salomão, Jonas G. Martins, Bruno R. R. Almeida, Ewerton O. Machado, Juliane A. N. Machado, Geraldo J. B. Moura, Stênio Í. A. Foerster, Arleu B. Viana‐Junior   +26 more
wiley   +1 more source

I'll Be Dammed: Efficiency and Cost‐Analysis of a Rehabilitated Prehispanic Dam in the Andes

Geoarchaeology, Volume 41, Issue 4, July/August 2026.
ABSTRACT Within archaeology there is a growing shift away from the purely aesthetic towards making the past relevant to present and future needs and demands. The Past Water Futures project charts the impact of ancient dam rehabilitation on climate change‐induced water scarcity in the North Central Andes.
Kevin Lane, Ricardo Flores‐Marquez, Rodrigo J. Puga‐Calderón, Pedro Gonzalez, Mario Advíncula, Alexander Herrera   +5 more
wiley   +1 more source

Fine‐scale patterns of genetic structure in three species of forest birds reveal dynamic Pleistocene history within an Amazonian interfluve

Ibis, Volume 168, Issue 3, Page 972-984, July 2026.
Phylogeographical studies of Amazonian birds have revealed large intraspecific diversity, even within recognized areas of endemism. To understand the origin and organization of Amazonian diversity, including the influence of current and historical landscapes, we need to evaluate fine‐scale patterns of genetic diversity in relation to detailed ...
Affonso Henrique Nascimento de Souza, Camila Duarte Ritter, João Marcos Guimarães Capurucho, Juliana Menger, Camila Cherem Ribas   +4 more
wiley   +1 more source

Como se Deve Fazer a História do Eu?

Educação & Realidade, 2013
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Nikolas Rose
doaj  

Isolated in the highlands, found in the museum: A new species of Characidium (Crenuchidae) from a Bolivian National Park, with a CT scan revealing features

Journal of Fish Biology, Volume 109, Issue 1, Page 371-383, July 2026.
Abstract A new species of Characidium is described from a small, isolated river in the highland areas of Noel Kempff Mercado National Park, Bolivia. The new taxon can be diagnosed by the presence of a relatively broad and conspicuous dark midlateral stripe extending from the tip of snout to the base of the caudal fin, markedly darker than the vertical ...
Leonardo Oliveira‐Silva, Karina Or, Angela Zanata, Scott A. Schaefer   +3 more
wiley   +1 more source

Microbially generated ferruginous crusts: A potential biosignature of continental input in coastal settings

Sedimentology, Volume 73, Issue 4, Page 1225-1243, June 2026.
ABSTRACT Thin ferruginous sandy crusts are common on top of sandstone beds in the Early Permian post‐glacial deposits of the Paraná Basin in southern Brazil. These crusts usually preserve wrinkle structures, suggesting that they might be a product of microbial mediation.
Patrícia Weschenfelder, Renata Guimarães Netto, Alisson Klayton Martins   +2 more
wiley   +1 more source

A new genus, Similihypoxys gen. nov., to Edessinae (Hemiptera: Heteroptera: Pentatomidae)

Austral Entomology, Volume 65, Issue 2, May 2026.
ABSTRACT A new genus for Edessinae close to Hypoxys is described. Similihypoxys gen. nov. Cunha & Fernandes is proposed for five new species, and one transferred from the genus Hypoxys: Similihypoxys infulatus (Breddin, 1904) comb. nov. (type species), S. connatus sp. nov., S. guianensis sp. nov., S. ineffigiatus sp. nov., S. quasinfulatus sp. nov. and
Eduardo V. P. Cunha, Benedito M. Nunes, Luiza F. R. Souza, José A. M. Fernandes   +3 more
wiley   +1 more source