Page 2 - Sexual Selection News Today

The lack of large numbers of fossils makes it hard to study sexual dimorphism in dinosaurs. But a new statistical approach offers insight into this question and others across science.

The lack of large numbers of fossils makes it hard to study sexual dimorphism in dinosaurs. But a new statistical approach offers insight into this question and others across science.

The modification of male pedipalps into secondary sexual intromittent organs is one of the hallmark characteristics of spiders, yet understanding the development and evolution of male genitalia across the order remains a challenging prospect. The embolus – the sclerite bearing the efferent spermatic duct or spermophor, and used to deliver sperm directly to the female genitalia during copulation – has always been considered the single unambiguously homologous palpal sclerite shared by all spi...

Sexual selection, a mechanism of evolution that can drive the appearance of bright feathers and elaborate horns, is more widespread among females than many researchers expected

Wing interference patterns (WIPs) are stable structural colours displayed on insect wings which are only visible at specific viewing geometries and against certain backgrounds. These patterns are widespread among flies and wasps, and growing evidence suggests that they may function as species- and sex-specific mating cues in a range of taxa. As such, it is expected that WIPs should differ between species and show clear sexual dimorphisms. However, the true extent to which WIPs vary between speci...

The Descent of Man "got right and wrong about human evolution." From natural selection to sexual selection Originally published in two volumes, The Descent of Man covered diverse aspects of animal and human animal life, ranging from comparative anatomy to mental faculties, the ability to use reason, morality, memory and imagination, or how animals choose to have sex and with whom or what. "Darwin proposed that sexual selection was instrumental in explaining the origin of what he called human r...

Galderma Receives FDA Approval for Restylane® Defyne for Chin Augmentation Represents second approved indication for Restylane Defyne in U.S.; expands Galderma Aesthetics growing Restylane product portfolio News provided by Share this article Share this article FORT WORTH, Texas, Feb. 2, 2021 /PRNewswire/ -- Galderma announces that the U.S. Food and Drug Administration (FDA) has approved Restylane ® Defyne for the augmentation and correction of mild to moderate chin retrusion for adults over...