Results 61 to 70 of about 2,696,363 (303)

Sexual selection gradients change over time in a simultaneous hermaphrodite

eLife, 2017
Sexual selection is generally predicted to act more strongly on males than on females. The Darwin-Bateman paradigm predicts that this should also hold for hermaphrodites.
Jeroen NA Hoffer, Janine Mariën, Jacintha Ellers, Joris M Koene   +3 more
doaj   +1 more source

Resource acquisition and pre‐copulatory sexual selection

Ecology and Evolution, 2022
Sexual selection influences the evolution of phenotypic traits and contributes to patterns of biodiversity. In many animals, mating involves sequential steps.
Hope Klug, Chelsea Langley, Elijah Reyes
doaj   +1 more source

Can Sexual Selection Drive the Evolution of Sperm Cell Structure?

Cells, 2021
Sperm cells have undergone an extraordinarily divergent evolution among metazoan animals. Parker recognized that because female animals frequently mate with more than one male, sexual selection would continue after mating and impose strong selection on ...
Leigh W. Simmons, Francisco Garcia-Gonzalez   +1 more
doaj   +1 more source

THE EVOLUTION OF HOMO LUDENS: SEXUAL SELECTION AND A THEOLOGY OF PLAY

Zygon, 2022
This essay argues that reflection on sexual selection can be theologically generative, and that it presents needed counteremphases to some of the discussions about theological anthropology that have been fueled by theological reflection on natural ...
doaj   +2 more sources

Post-insemination selection dominates pre-insemination selection in driving rapid evolution of male competitive ability.

PLoS Genetics, 2022
Sexual reproduction is a complex process that contributes to differences between the sexes and divergence between species. From a male's perspective, sexual selection can optimize reproductive success by acting on the variance in mating success (pre ...
Katja R Kasimatis, Megan J Moerdyk-Schauwecker, Ruben Lancaster, Alexander Smith, John H Willis, Patrick C Phillips   +5 more
doaj   +1 more source

Presentation: Sexual Selection

, 2001
Darwin’s second great theory, sexual selection, attempts to explain why males are males and females are females. In this lecture Dr. Michael Ryan explores the diversity of differences between male and female animals, asks why such differences have ...
Ryan, Michael, Environmental Science Institute   +1 more
core   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan, Michael Abele, Calogero Virgone, Michaela Kuhlen, Ricardo Lopez‐Almarez, Tal Ben‐Ami, Ewa Bien, Maja Cesen, Malgorzata A. Krawczyk, Andrea Ferrari, Gianni Bisogno, Yves Reguerre, Dominik T. Schneider, Louise Galmiche, Jorg Fuchs, Sarah Braungart, Bilgehan Yalcin, Ines B. Brecht, Daniel Orbach   +18 more
wiley   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source

Understanding the evolution of ecological sex differences: Integrating character displacement and the Darwin‐Bateman paradigm

Evolution Letters, 2019
Sex differences in selection arise for at least two possible reasons: (1) differences originating from anisogamy—the Darwin‐Bateman paradigm—and (2) competition‐driven ecological character displacement (ECD), agnostic of anisogamy.
Stephen P. De Lisle
doaj   +1 more source

Sexual Selection: Copycat Mating in Birds [PDF]

Current Biology, 2005
Female zebra finches may be influenced by the choices of other females when selecting mates, challenging the view that mate-choice copying should not occur in species with biparental care.
Brown, GR, Fawcett, TW
openaire   +3 more sources