How are hybridized species affecting wildlife?

How are hybridized species affecting wildlife?

Researchers who transplanted combinations of wild, domesticated, and domesticated-wild hybridized populations of a fish species to new environments found that within 5 to 11 generations, selection could remove introduced foreign genes from wild populations that hybridized with domesticated populations.

The Evolutionary Applications study provides evidence that natural selection, over time, removes the adaptive advantages that hybridized populations experience as a result of increased genetic diversity.

If hippopotamuses can't swim, how can some be living on islands?

If hippopotamuses can't swim, how can some be living on islands?

There is no published account where hippopotamuses are demonstrably shown swimming or floating at the surface of any body of water. But if they can't swim, how did they reach and colonize islands?

Experts say that widely accepted models for the methods, patterns, and timing of the colonization and dispersal to several islands (e.g. Cyprus, Crete, and Madagascar) may need to be reconsidered.

Protein secrets of Ebola virus

Protein secrets of Ebola virus

When casualties increased, war coverage became more negative

People are attracted to the body odor of others with similar political beliefs

A new study reveals that people find the smell of others with similar political opinions to be attractive, suggesting that one of the reasons why so many spouses share similar political views is because they were initially and subconsciously attracted to each other's body odor.

During the study, 146 participants rated the attractiveness of the body odor of unknown strong liberals and strong conservatives, without ever seeing the individuals whose smells they were evaluating.

Habitual Facebook users: Suckers for social media scams?

A new study finds that habitual use of Facebook makes individuals susceptible to social media phishing attacks by criminals, likely because they automatically respond to requests without considering how they are connected with those sending the requests, how long they have known them, or who else is connected with them.

Predictors of habitual use of Facebook include frequent interactions with the platform, a large number of friend connections, and individuals' inability to regulate their social media consumption.

Cost-share programs encourage most to mitigate wildfire danger

Most homeowners are willing to take part in cost-sharing that helps pay for wildfire risk mitigation on their properties, but some of those with the highest wildfire risk are the least likely to participate in those programs, according to a collaborative study by the University of Colorado Boulder and partnering institutions.

Past studies have shown that people who think their properties are vulnerable to wildfires are more open to taking actions that lower the risk, like clearing vegetation around their homes to create a defensible space.

Does having daughters cause judges to rule for women's issues?

Judges with daughters consistently vote in a more feminist fashion on gender issues than judges who have only sons, and the effect appears to be driven primarily by Republican judges.

The findings are based on data on the families of 224 judges sitting on the US Courts of Appeals, as well as nearly 1,000 gender-related cases decided by these judges.

The American Journal of Political Science study reveals that personal experiences influence how judges make decisions, and that empathy may indeed be a component in how judges decide cases.

Poverty-obesity link is more prevalent for women than men, study shows

AUSTIN, Texas — Adolescent girls living in economically disadvantaged families are more likely than their male counterparts to become overweight or obese, according to new research from The University of Texas at Austin.

Small algae with great potential

In an unprecedented evolution experiment scientists from GEOMAR Helmholtz Centre for Ocean Research Kiel and the Thünen Institute of Sea Fisheries have demonstrated for the first time, that the single most important calcifying algae of the world's oceans, Emiliania huxleyi, can adapt simultaneously to ocean acidification and rising water temperatures. In their study, the researchers found no evidence for the widespread idea that evolutionary adaptations to these two aspects of climate change would interfere with each other.