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Babies can tell who has close relationships based on one clue: Saliva

Neuroscientists have identified a specific signal that young children and even babies can use to determine whether two people have a strong relationship and a mutual obligation to help each other: whether those two people kiss, share food, or have other interactions that involve sharing saliva.

Scientists identify new genus and species of legume, now mysteriously extinct

Researchers have described a new legume tree from flowers embedded in several lumps of amber recovered from deep within an amber mine in the mountains of the Dominican Republic.

COVID-19 vaccines do not cause infertility, study finds

New findings indicate that COVID-19 vaccination does not impair fertility, but males who become infected by the coronavirus may experience short-term reduced fertility.

An all-in-one approach to diabetes treatment

A team of researchers has come up with a new approach to streamline the process that people with diabetes use to estimate the carbohydrate content of a meal, draw blood to measure current blood glucose levels, and calculate and deliver the correct insulin dose.

Worldwide coordinated search for dark matter

An international team of researchers has published comprehensive data on the search for dark matter using a worldwide network of optical magnetometers. According to the scientists, dark matter fields should produce a characteristic signal pattern that can be detected  by correlated measurements at multiple stations of the GNOME network.

Drug mimics beneficial effects of fasting in mice

An investigational cancer drug that starves tumors of their energy supply also shows evidence of improving whole body metabolism, leading to improved weight control, according to a new study in mice.

New modeling tools to help solid-waste systems reach environmental goals

Researchers have developed a free, user-friendly tool that makes use of multiple computational models to help solid waste systems achieve their environmental goals in the most cost-efficient way possible.

The cellular response that protects pigs from COVID-19

Studies since the start of the pandemic have noted that pigs exposed to the coronavirus don't show clinical signs of disease nor do they transmit the virus to other animals. Scientists have uncovered important clues that shed light on why pigs don't get sick, and the discovery could lead to better treatments for COVID-19 in humans.

Cancer treatment may inhibit immune response to COVID-19 vaccination

A study has found that patients with cancer who receive chemotherapy -- and some targeted therapies, such as CDK4/6 inhibitors and therapies targeted at B cells -- may mount an inadequate immune response to COVID-19 vaccination.

Social isolation among older adults linked to having fewer teeth

Older adults who are socially isolated are more likely to have missing teeth--and to lose their teeth more quickly over time--than those with more social interaction, according to a new study of Chinese older adults.

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