Organizing the beetle files
When biologists set out to organize the family tree for the huge family of beetles, they ended up identifying previously unknown relationships for many of the beetle groups -- somewhat like finding new cousins -- and re-defining the major families, new research shows.
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Habitat split leads to biodiversity decline
Amphibians such as frogs are at risk, especially those that have to travel from their homes in forest habitats to aquatic areas to breed and back; and with this added risk, the diversity, or variety, of species declines, according to a new report. Traveling to the water to breed, then returning to the forest is called habitat split, and researchers say that it is usually caused by human activity.
Hinode mission delves into the Sun's mysteries
New results from the Hinode space mission should help explain some long-standing mysteries of the Sun. ("Hinode" is Japanese for "sunrise.")
In early human ancestor, growing up came late for males
If Paranthropus robustus -- a human ancestor that lived about 2 million years ago -- had gone to school dances, it would have been pretty awkward. New research shows that the males of this species matured much later in life than females.
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A supercontinent that stayed put
For about 100 million years of Earth's history, from the Permian through the Jurassic periods, all of Earth's continents were actually joined as a single supercontinent, called Pangea ("pan-JEE-uh"). It began breaking up during the Jurassic, forming the continents Gondwanaland and Laurasia.
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'Roach-bots' guide cockroach swarms
When a handful of cockroach-like robots joined a group of real roaches, the roach-bots coaxed the whole group to behave in unusual ways, researchers report in a new study.
Spadefoot toads break the rules in dry weather
Desert-dwelling animals have all kinds of clever tricks for surviving in their dry environments. This includes the spadefoot toad, which is named for the hard, pointy "spade" on its hind feet, which is used for digging.
They don't fly, they aren't lemurs, but colugos are our closest relative
Researchers have determined that colugos are the closest relative to primates, according to a Science research article. Humans belong to the biological order of primates along with apes, monkeys and lemurs. Knowing who we are related to allows researchers the opportunity to study how we primates evolved from our nearest relative.
Neanderthals may have been redheads
Some Neanderthals -- relatives to modern humans, who lived in Europe and Central Asia approximately 230,000 to 30,000 years ago -- may have had genetic variations that hypothetically could have produced pale skin and red hair, a European research team has found.
A mutation in a dog gene opens new research into the defensin protein
Researchers who were trying to find the mutated gene that controls coat color in dogs now report that they found the gene, and have also discovered that it has an unexpected additional role. The gene also sends a signal to a member of a protein family that is responsible for defending the body against infection. The proteins are called defensins, because their job is to defend the body.
Titan's morning weather forecast: Widespread drizzle
Mornings on Saturn's moon Titan are often cloudy and drizzly over a wide area, according to a new astronomy/weather report by astronomers using giant telescopes on Earth.
Wild crows are crafty with tools
Recording themselves on tiny video cameras attached to their tailfeathers, New Caledonian crows have revealed themselves to be resourceful tool-users in the wild.
Research supports oral histories of distant marine travel across the Pacific
Stories passed down for generations in the Pacific islands tell of regular maritime travel over several thousands of kilometers while most people were still traveling only in sight of land and long before Europeans began their world travels. Two Australian scientists reported this week that they found evidence to support these oral histories.
Keeping it clean at Mars' South Pole
Though we can't say you'd want to drink it, the water frozen in Mars' south polar ice cap is pretty pure, a new study suggests. Scientists have known that both poles of Mars are hidden beneath caps of layered ice. But they're only just learning how much ice there is and what it's made of.
Searching by starlight for the universe's mysterious dark matter
The objects that we can see in the universe, from the smallest speck of sand to the largest planet, are made up of protons, electrons and neutrons. But, most of the universe's matter is "dark matter." We can't see it, because it doesn't interact with light, and we don't even know what kind of particles it's made up of. Now, researchers think they know a way to learn more about this mysterious type of matter.
Higher social skills are distinctly human, toddler and ape study reveals
You may wonder about your younger sibling's social abilities, but new research reveals that while they may sometimes act ape-like, they are really showing their higher social skills by the time they are 18-months-old.
Some early urban cities grew from the outside-in
Rising out of a field in northeastern Syria is an archaeological site that tells a slightly different story about the evolution of early urban centers from what researchers have previously believed. The city grew with an unusual "outside-in" growth pattern, according to a study in Science.
Dark side of Uranus' rings provides new view
The first images of the rings of the planet Uranus from a ground telescope show a system of rings that have changed since the first pictures were taken 20 years ago, a new report states.
Mama bird benefits from help
When mother fairy wrens have helpers that share baby-feeding duties, they save their own strength and lay smaller eggs, researchers report.
Successful conservation stories from across the globe
A trio of new studies published in Science this week provides examples of successful conservation efforts on three continents.
If you know any toddlers, you've probably wondered what is going on in their heads as they put their (full) bowls on their head at mealtime or run around in circles, shrieking for no apparent reason.
Who's watching you?
Research shows that humans switch from selfish to unselfish behavior when they are watched. Do you?
Slow rise for the dinosaurs
The Jurassic period, about 200 to 150 million years ago, was the heyday for the dinosaurs, which were the most common land animals during this time. (Does the movie title Jurassic Park ring a bell?)
Male butterflies bounce back
About five years ago, on the islands of Samoa, most of the male Hypolimnas bolina butterflies, also known as the Eggfly or Blue Moon butterfly, disappeared. Now, scientists report that the males have made a comeback and are almost as common as females.
Frozen DNA tells Greenland's past
About 1,000 years ago the infamous Norseman Erik the Red gave Greenland its name, even though 85 percent of the country is covered in ice. And now, some of that ice is providing us with information about prehistoric life on the arctic island.
Funding provided by the William T. Golden Endowment Fund for Program Innovation at AAAS.