Female guppies with smaller brains can distinguish attractive males, but they don't recognise them as being more appealing or choose to mate with them, according to a new study by UCL and Stockholm University researchers.
Evolution
Oct 8, 2018
0
101
(PhysOrg.com) -- Breaking up may actually not be hard to do, say scientists who've found a population of tropical butterflies that may be on its way to a split into two distinct species.
Plants & Animals
Nov 5, 2009
5
1
Tropical Heliconius butterflies are well known for the bright color patterns on their wings. These striking color patterns not only scare off predators—the butterflies are poisonous and are distasteful to birds—but are ...
Plants & Animals
Mar 21, 2024
0
105
The mysteries of sexual attraction just became a little less mysterious—at least for moths. A team of six American and European research groups including Tufts University has discovered which gene expressed in the brain ...
Plants & Animals
May 14, 2021
0
15
Achieving pregnancy has been shown to be more likely between partners who carry dissimilar human leucocyte antigen (HLA) immune genes. Accordingly, humans are expected to choose HLA dissimilar reproductive partners. Earlier ...
Evolution
Aug 19, 2020
0
124
Heliconius butterflies are a diverse and colorful group of species that live throughout tropical regions of Central and South America. Many of them have wing patterns and colors that mimic other species to protect themselves ...
Plants & Animals
Oct 25, 2018
0
35
Relationship satisfaction and the energy devoted to keeping a partner are dependent on how the partner compares with other potential mates, a finding that relates to evolution's stronghold on modern relationship psychology, ...
Evolution
May 17, 2016
4
497
Worried about the low sex drive of giant pandas in zoos, scientists have tried many things to get them in the mood—not least Viagra and "panda porn".
Plants & Animals
Dec 15, 2015
1
46
Male fruit flies like to have a variety of sexual partners, whereas females prefer to stick with the same mate – or move on to his brothers.
Plants & Animals
Sep 24, 2013
0
0
(PhysOrg.com) -- Weather and environmental change can bring alterations – and scarcity – in food resources. In looking at how such changes might affect mating choices and subsequent reproduction, University of Cincinnati ...
Plants & Animals
Apr 1, 2011
0
0
