K

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After the age of dinosaurs came the age of ant farmers - Scienmag: Latest Science and Health News

A group of South American ants has farmed fungi since shortly after the dinosaurs died out, according to an international research team including …

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Desert Moss Makes Water Trap So Powerful It Can Hoist Water against Gravity

You have a problem. You are a plant, you live in a desert, and you have no roots – at least not any that can absorb water, which is a bit of an issue …

Coastlines

Microbiome 'social network' revealed by gene swaps

Movement of genes across and between microorganism species could influence humans’ susceptibility to disease.<p>To understand how microorganisms and …

8 Times Very Different Animals Evolved Very Similar Traits

Ever show up at a party dressed to the nines only to find that someone else was wearing the same outfit as you? Awkward! But don’t be too …

The brain’s blueprint for aging is set early in life

If you’ve ever watched a baby purse her lips to hoot for the first time, or flash a big, gummy grin when she sees you, or surprise herself by rolling …

The Brain

Scientists closer to understanding why red hair genes increase skin cancer risk

Research shows melanoma patients with the MC1R gene variant - even if they don’t have red hair - show more mutations in their cancer than those without<p>Scientists are a step closer to understanding why people with the genes for red hair have a greater risk of developing the potentially deadly skin …

Brain Cells Break Their Own DNA to Allow Memories to Form

Given the fundamental importance of our DNA, it is logical to assume that damage to it is undesirable and spells bad news; after all, we know that …

Genetics

Do You Really Need Antibiotics? This Test Can Tell

We’re in the middle of an antibiotic crisis that public health experts have been warning about for years. While antibiotics are a miracle of modern …

Microbiology

Virtual reality lets you stroll around a breast cancer cell

I feel like I’ve landed on an alien planet. I’m walking across the surface of a breast cancer cell as drug nanoparticles whizz past my head like …

Southern New Hampshire University’s Paul LeBlanc Wants Higher Ed to Back Up Its Claims

Postsecondary Learning<p>Southern New Hampshire University’s Paul LeBlanc Wants Higher Ed to Back Up Its Claims<p>By Betsy Corcoran and Marguerite McNeal   …

Higher Education

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9 Signs That You're An Ambivert

I'm sure you've been asked many times whether you're an introvert or an extrovert. For some people, it's an easy choice, but for most of us, it's difficult to choose one way or the other.<p>It's hard to choose because the introvert/extrovert dichotomy reflects a tired and outdated view of personality. …

Sexual arms race drives range expansion in beetle species

A battle between the sexes may be behind a dramatic shift in diving beetle populations over the past three decades, a new study shows.<p>Female …

New Lizard Shows Evolution’s Predictability

A new anole on the island of Hispaniola confirms that ecological communities can follow predictable patterns.<p>The anole lizards that dot many islands …

Paper challenges current hypotheses for the gain and loss of heavy pigmentation in humans over evolutionary time

Popular theories of why our human ancestors gained and then lost dark skin over the course of evolution may be incorrect, according to a new paper by …

Evolution

Earth - We have the wrong idea about males, females and sex

Once upon a time, animal courtship was thought to run something like a Barbara Cartland novel. The rakish males battle it out for a chaste female, who sits around choosing the prince charming to father her young. While her mate may sow his wild oats far and wide, she patiently tends her …

Sex is a costly molecular kind of wizardry – why evolve it? – Arunas L Radzvilavicius

At its heart, sex is a process of genetic mixing: it creates unique sets of genes and trait combinations different from either of the two parents. In …

Probiotics on the brain: One gut microbe reverses autism-like symptoms in mice

Proving strength of the gut-brain axis, bacteria-laced drinks improve mouse behavior.<p>When making up your mind, going with your gut can be a safe bet. …

A simple numbers game seems to make kids better at math

Although math skills are considered notoriously hard to improve, Johns Hopkins University researchers boosted kindergarteners' arithmetic performance …

Mathematics

Birds pack more cells into their brains than mammals

New research reveals the secret behind the remarkable intelligence of some bird species<p>Related: Blind cave fish evolved a shrunken brain to save energy<p>Callingsomeone “bird brain” used to be considered as an insult. Birds’ brains are very small compared to those of mammals, and what’s more, they …

Scientists capture most intimate view yet of human conception

Birds do it. Bees do it.<p>But until now, no one has been entirely sure how humans do it – at least at the molecular level.<p>Using high-powered X-rays and sophisticated computer algorithms, two teams of researchers – one based in Canada, one in Japan – have revealed the mysterious connection that allows …

One of ecology's oldest puzzles: Why does diversity cluster near the equator?

Scientists find a 'ubiquitous' pattern in ecology that hasn't always existed. How did this pattern originate?<p>From plants to animals, insects to fish, …

A Real-Life Jedi Mind Trick That Will Reprogram Your Co-Workers' Brains

Using applied neuroscience, you can immediately and easily alter other people's perception of past events.<p>Last week, I explained a simple neuroscience technique to reprogram your own brain in less than 60 seconds. Today, I'll explain a technique, based on the same principle, that allows you to …

Consciousness

Have You Been Angry When Feeling Hungry? Science Says This Is Normal

When we feel hungry, our brains are sending out signals that we need fuel. The more this goes on, the hungrier we get, and we begin to feel angry. …

Scientists just confirmed there's a second layer of information hidden in our DNA

Shutterstock<p>Theoretical physicists have confirmed that it's not just the information coded into our DNA that shapes who we are - it's also the way …

Response: Classroom Rules - Ways to Create, Introduce Enforce Them

Response: Classroom Rules - Ways to Create, Introduce & Enforce Them<p>The new "question-of-the-week" is:<p><i>What are the best ways to introduce classroom</i> …

Why Do Animals Hibernate?

During the cold winter months, nothing seems more inviting than a warm bed. But for some animals, hunkering down in a cozy den when nights are long …

Groundhog Day

Forgetting is key to good memory