Since methods for genetic paternity analyses were introduced, it has been clear that many pair-living animal species, including humans, do not take partnership fidelity that seriously. In most species, there is some proportion ...
Plants & Animals
Nov 23, 2020
0
35
Often associated with dirty living conditions and the spread of disease, cockroaches understandably have a bad reputation. But of the 4,600 cockroach species alive today, only a few are considered pests, with most choosing ...
Plants & Animals
Nov 6, 2020
0
80
While it is known that stem cells have the ability to develop into all tissues in a precisely regulated process, the way environmental cues affect stem cell behavior has remained poorly understood. In a new study, researchers ...
Cell & Microbiology
Oct 20, 2020
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57
In their efforts to identify the genetic basis for differences in mate choice that keep two co-existing species of butterfly separate, evolutionary biologists at LMU have identified five candidate genes that are associated ...
Plants & Animals
Sep 29, 2020
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5
Some male butterflies go to extreme lengths to ensure their paternity—sealing their mate's genitalia with a waxy "chastity belt" to prevent future liaisons. But female butterflies can fight back by evolving larger or more ...
Plants & Animals
Sep 3, 2020
0
142
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
A species of frog from the Brazilian rainforest has become the first amphibian shown to live in a harem, where one male mates with two females who remain loyal to him.
Plants & Animals
Aug 12, 2020
0
322
Yitzchak Ben Mocha, an anthropologist with Zürich University, has conducted a study of human procreation habits as part of an effort to understand why humans prefer to mate in private. In his paper published in the journal ...
Infertility is a worldwide clinical problem for human health that affects 8 to 12 percent of couples. A new study from Washington University in St. Louis has implications for understanding some age-related aspects of male ...
Plants & Animals
Aug 3, 2020
6
352
In a new meta-study, experts from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) have published groundbreaking findings on the effects of climate change for fish stocks around the globe. ...
Plants & Animals
Jul 2, 2020
0
209
