Results 141 to 150 of about 8,060,921 (291)

The “costly son” hypothesis: Sons exacerbate obstetrical dilemmas in humans and other mammals

The Anatomical Record, EarlyView.
Abstract Human childbirth has often been considered uniquely difficult among mammals, yet recent evidence suggests that obstructed labor and fetopelvic disproportion are widespread across placental mammals. Here, we propose the “costly son” hypothesis: because male offspring are typically larger at birth, they impose greater obstetric risk on mothers ...
Nicole D. S. Grunstra, Jonathan C. K. Wells   +1 more
wiley   +1 more source

Museums and computer collections

, 2018
The earliest collections relating to computer technology appeared practically at the same time as com- puters began to be used in busi- nesses. If we include objects and machines used for calculations, thenotion covers a vast period of hu- man history.
Hachez-Leroy, Florence, Paradinas, Pierre   +1 more
openaire   +1 more source

Anatomy and variation in the paraphyletic Mosasaurus lemonnieri assemblage from the Craie phosphatée de ciply, Belgium

The Anatomical Record, EarlyView.
Abstract Nineteenth century excavations of the Ciply‐Malogne Phosphatic Chalk Formation in Hainaut, Belgium, yielded over 50 partial mosasaur skeletons, the majority of which were referred to the species Mosasaurus lemonnieri Dollo, 1889. In the years since, this taxon has experienced a complicated taxonomic history, and its exceptional hypodigm has ...
Henry S. Sharpe, Hallie P. Street‐Sampson, Takuya Konishi, Michael W. Caldwell   +3 more
wiley   +1 more source

Corrigendum to "First records of <i>Epeus bicuspidatus</i> and description of a new species of <i>Epeus</i> (Araneae, Salticidae) from Vietnam". [PDF]

Biodivers Data J
Pham DS, Duc Toan V.
europepmc   +1 more source

Characterising the phenotypic diversity of Papilio dardanus wing patterns using an extensive museum collection. [PDF]

PLoS One, 2014
Thompson MJ, Timmermans MJ.
europepmc   +1 more source

First reports on the relationship between the eggshell and bone mineralization in Rhinoclemmys punctularia punctularia embryos

The Anatomical Record, EarlyView.
Abstract Composed of various minerals, the eggshell provides ideal conditions for embryonic development, and understanding its composition and structure is essential for clarifying its relationship with bone formation. This study characterized the structure and mineral profile of the Rhinoclemmys punctularia punctularia eggshell in relation to ...
Igor Mathias Trindade Lemos, Deise Cardoso de Lima, Antônio Basílio Guerreiro Júnior, Brenda Stefany dos Santos Braga, Antônio Messias Costa, Ana Cássia Sarmento Ferreira, Maria Auxiliadora Ferreira, Verônica Oliveira‐Bahia, Diva Anelie de Araújo Guimarães   +8 more
wiley   +1 more source

North American crayfish: A quest for the biggest catch. [PDF]

Ecology
Bloomer CC, Adams SB, Barnett ZC, Graham ZA, Delekta EM, Hayes DM, Loughman ZJ, MacIntosh H, Pugh MW, Reed K, Shoobs NF, Taylor CA, Larson ER.   +12 more
europepmc   +1 more source

Osteohistological evidence for terrestrial adaptation and an extended growth period in mekosuchine crocodylians and its potential role in their extinction

The Anatomical Record, EarlyView.
Abstract The Australasian crocodylian fossil record is dominated by the extinct endemic clade Mekosuchinae, with known members spanning the Eocene‐to‐Holocene. This diverse clade exhibited high morphological disparity, from early members superficially similar to Crocodylus, to more terrestrial forms later in the clade's evolutionary history.
Devin K. Hoffman, Cecily S. C. Nicholl, Oliver Bradley, Sreya Magar, Marie Sofia Sebaratnam, Alexandra Houssaye, Ryan N. Felice, Adam M. Yates, Stephen F. Poropat, Philip D. Mannion   +9 more
wiley   +1 more source

Eight quick tips for requesting materials from natural history collections. [PDF]

PLoS Comput Biol
Scorsim Omura GY, Furr D, Jacob Machado D.   +2 more
europepmc   +1 more source

Body mass and sex estimation from lower carnassial tooth morphometry in the endangered Iberian wolf (Canis lupus signatus): An ecomorphological analysis of sexual size dimorphism

The Anatomical Record, EarlyView.
Abstract The Iberian wolf (Canis lupus signatus) is an endangered subspecies characterized by highly fragmented populations and increasing human–carnivore conflict across the Iberian Peninsula. Although body mass strongly influences predator–prey dynamics and ecological performance, quantitative assessments of sexual size dimorphism (SSD) and body mass
Leonardo Cotts, Eduardo Rossener, Ricardo Moratelli, Maria da Luz Mathias, Oscar Rocha‐Barbosa   +4 more
wiley   +1 more source