Fruit flies have provided scientists with new insight into the genetic basis for the rapid evolution of male external genitalia driven by sexual selection.
Evolution
Feb 2, 2024
1
26
Picky female sparrows may be more unfaithful, new Imperial research suggests. Cheating on social partners is common in birds, and there are clear benefits to males who can raise more offspring without investing in their care. ...
Plants & Animals
Jan 12, 2024
0
21
Among many species, breeding preferences and tactics can differ among males and females. When aggressive behavior by males toward unreceptive females goes awry, it may result in failure to reproduce, and in some cases, fatality ...
Females may infer what makes a male attractive by observing the choices of more experienced females, and the context of those choices matters, according to a mathematical model published October 3rd in the open access journal ...
Plants & Animals
Oct 3, 2023
0
213
Finding love in a small isolated place can be tough when everyone is a familiar face, or when half the dating pool is already out because they're all close relatives.
Plants & Animals
Mar 7, 2022
0
150
Sex is an expensive business, biologically speaking. Finding a suitable mate takes time and energy. Offspring are also a huge investment of resources. But sex does offer a rewarding possibility: children who are fitter than ...
Plants & Animals
Jan 28, 2022
6
7
When talking to babies, humans slow down their speech, raise their pitch and change the "color" of their voice. This 'baby talk,' as people know it, increases the infant's attention and facilitates language learning. Among ...
Plants & Animals
Aug 19, 2020
0
5147
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
Human eggs use chemical signals to attract sperm. New research from Stockholm University and Manchester University NHS Foundation Trust shows that eggs use these chemical signals to choose sperm. Different women's eggs attract ...
Evolution
Jun 9, 2020
10
9885
The American coot is a somewhat drab water bird with gray and black feathers and a white beak, common in wetlands throughout North America. Coot chicks, however, sport outrageously bright orange and red feathers, skin, and ...
Plants & Animals
Dec 30, 2019
1
570
