Biological sex is typically understood in binary terms: male and female. However, there are many examples of animals that are able to modify sex-typical biological and behavioral features and even change sex. A new study, ...
Plants & Animals
Aug 10, 2020
11
474
Much smaller than its counterpart, the X chromosome, the Y chromosome has shrunken drastically over 200 million years of evolution. Even those who study it have used the word "wimpy" to describe it, and yet it continues to ...
Evolution
Aug 6, 2020
0
224
Plant experts at UC Davis have defined the genetic basis of sex determination in grapevines, one of the oldest and most valuable crops worldwide.
Plants & Animals
Jun 22, 2020
0
20
A modification that creates more male offspring was able to eliminate populations of malaria mosquitoes in lab experiments.
Plants & Animals
May 12, 2020
3
436
Fruit flies, like many animals, engage in a variety of courtship and fighting behaviors. Now, Salk scientists have uncovered the molecular mechanisms by which two sex-determining genes affect fruit fly behavior. The male ...
Biotechnology
Apr 29, 2020
0
121
Sex in plants can be befuddling. Most species are hermaphrodites, expressing both male and female gametes in one individual. But some, including shrub willow Salix purpurea, employ the evolutionary strategy we are far more ...
Biotechnology
Apr 20, 2020
0
84
When it comes to determining how women and men store fat differently, it turns out fruit flies may hold the key.
Plants & Animals
Jan 28, 2020
0
173
The bluehead wrasse is a fish that lives in small social groups in coral reefs in the Caribbean. Only the male has a blue head—signaling his social dominance over a harem of yellow-striped females.
Evolution
Jan 24, 2020
0
3
Sex is an ancient and widespread phenomenon, with over 99 percent of eukaryotes (cells with nuclei) partaking in some form of sexual reproduction, at least occasionally. Given the relative ubiquity and presumed importance ...
Evolution
Dec 23, 2019
0
21
A peptide expressed in the brains of fish helps to determine the different mating behaviors of the two sexes, RIKEN and University of Tokyo scientists have found. Understanding neurologically what makes the sexes behave differently ...
Plants & Animals
Nov 25, 2019
0
3
