Results 241 to 250 of about 4,113,485 (269)

Children's Numerical Estimation Is Biased by Male Informants More Than Female Informants

Developmental Science, Volume 29, Issue 2, March 2026.
ABSTRACT Numerical estimation is one of the key early math skills and predicts children's long‐term math achievement. While children are born with an intuitive “number sense,” they do not form a mapping between nonverbal numerical representations and symbolic numbers until about 5 years of age. This protracted learning process is embedded in children's
Kathleen Cracknell, Julia Hauss, Miaofan Chen, Robert Sierp, Lin Bian, Jinjing Wang   +5 more
wiley   +1 more source

Examining Paternal Care in Captive Sumatran and Hybrid Orangutans. [PDF]

Zoo Biol
Frakes LA, Mayhew JA, Ragan P, Sheeran LK, Gabriel KI.   +4 more
europepmc   +1 more source

The Effect of Background Colour on Behaviour and Development of Golden Mantella (Mantella aurantiaca) Tadpoles

Ethology, Volume 132, Issue 3, Page 204-215, March 2026.
This study examined how background colour influences behaviour and development in golden mantella (Mantella aurantiaca) tadpoles across ontogeny. Tadpoles preferred darker backgrounds, and this preference got less strong with increasing age. Individuals reared in darker conditions were less active but did not differ in growth rate and shelter use when ...
Prathik Amin, Joachim G. Frommen, Jade Newton‐Youens   +2 more
wiley   +1 more source

Birth-Death Dynamics of Microsatellites: Mechanistic Insights from Orthologous Loci in Felidae. [PDF]

Genes (Basel)
Zhang W, Zhang M, Liu H.
europepmc   +1 more source

Trouble in the Tank: A Case Report of Fatal Scuticociliate Encephalitis in a Whitetip Reef Shark (Triaenodon obesus)

Journal of Fish Diseases, Volume 49, Issue 3, March 2026.
Abstract This case report presents a recent case of scuticociliatosis in a whitetip reef shark (Triaenodon obesus), housed at a zoo (Haus des Meeres Aqua Terra Zoo, Vienna, Austria). Clinical signs such as uncoordinated swimming and body tilt were observed prior to death.
Hella Schwegler, Jeff Schreiner, Maria Prüllage, Karoline Lipnik, Astrid S. Holzer, Eva Lewisch   +5 more
wiley   +1 more source

Factors shaping giraffe behavior in U.S. zoos: A multi-institutional study to inform management. [PDF]

PLoS One
Wark JD, Cronin KA.
europepmc   +1 more source

The American Black Bear (Ursus americanus) as an Apex Predator: Investigating the Ecological Role of the World's Most Abundant Large Carnivore

Mammal Review, Volume 56, Issue 1, March 2026.
Black bears as apex predators. American black bears can (1) produce top‐down effects on ungulates equal to or exceeding those of typical apex predators and (2) modify the spatiotemporal behaviour of other carnivores, including pumas and coyotes. We argue that the term ‘apex predator’ is highly context dependent and not a species‐wide status.
John M. Nettles, Caroline M. Abramowitz, Wesley W. Boone, Stephen N. Harris, Chloe E. Horton, Meghan P. Keating, Dana L. Nelson, Samantha N. Smith, Katelyn N. Steen, Erin K. Buchholtz, David S. Jachowski   +10 more
wiley   +1 more source

Influence of Divided Ponds on Fish Diets in Polyculture: Insights From Carbon and Nitrogen Stable Isotopes in Trophic Webs

Aquaculture, Fish and Fisheries, Volume 6, Issue 1, February 2026.
Estimated contributions of food resources to the diets of fish and isotope values of carbon (δ13C) and nitrogen (δ15N) of individual fish using Bayesian stable‐isotope mixing models by species, treatment (open or divided pond) and period (July or October).
Purco Ralaiarison Ralien, Michael S. Corson, Marc Roucaute, Christophe Menniti, Kazi Ahmed Kabir, Joël Aubin, Sarah Nahon   +6 more
wiley   +1 more source

Investigating the Impact of Acoustic Environment and Human Presence on Okapi Faecal Glucocorticoid Metabolites.

Noise Health
de Queiroz MB, Passos LF, de Azevedo CS, Schork I, Palme R, Davies WJ, Young RJ.   +6 more
europepmc   +1 more source

Development of a Methodology for Measuring Oxytocin in Feces: Insights from a Preliminary Study in Captive Lions (<i>Panthera leo</i>). [PDF]

Animals (Basel)
Serres-Corral P, Almagro V, Carbonell L, Borragán S, Martínez-Nevado E, Quevedo MA, Fernández-Bellon H, Carbajal A, López-Béjar M.   +8 more
europepmc   +1 more source