A geologic event known as diking can cause strong earthquakes — with a magnitude between 6 and 7, according to an international research team. Diking can occur all over the world but most often occurs in areas where Earth’s tectonic plates are moving apart, such as Iceland, Hawaii and parts of Africa in the East African Rift System. —> Read More
Modern men increasingly value brains over beauty when choosing long-term mates, say researchers. While the common view is that our mate choices are evolutionarily “hardwired” in our brains and therefore minimally responsive to changing conditions, some evolutionary scientists now argue that humans are programmed to respond with great flexibility to changing environments. —> Read More
In bloodhounds and neutrophils, getting the scent is not enough. Dogs and immune cells have to remember the chemoattractant they are pursuing, even when it momentarily fades out or threatens to overwhelm. —> Read More
Horses are able to distinguish between at least some human facial expressions, suggests a new study by researchers at the U.K.’s University of Sussex.
In the study, published in the February edition of Biology Letters, researchers examined the reactions of 28 horses, from five different stables, to large photos that showed a man either smiling or making an angry expression.
“We found that when we presented the photograph to the horses, they really paid attention and engaged with the facial expression images, partly because this is quite a novel situation for them,” lead researcher Amy Smith told The Huffington Post in an email. “Responses to real-life humans are likely to be more subtle, because they are more accustomed to these interactions.”
When the horses viewed the angry images, their heart rates sped up more quickly, researchers found. Horses were also more likely to turn and look at the angry faces with their left eye — a reaction that the researchers wrote is “generally associated with stimulus perceived as negative.” The theory behind this “left gaze bias” is that the brain’s right hemisphere is specially equipped to help process negative emotions.
“It’s interesting to note that the horses had a strong reaction to the negative expressions but less so to the positive,” Smith said in a news release. “This may be because it is particularly important for animals to recognize threats in their environment. In this context, recognizing angry faces may act as a warning system, allowing horses to anticipate negative human behavior such as rough handling.”
However, the horses were also being shown photos of strangers, and researchers noted in the paper that the animals may have had stronger responses to the happy faces if they were familiar with the people pictured. Dogs, —> Read More
CAPE CANAVERAL, Fla. (Reuters) – NASA’s next cargo run to the International Space Station will be delayed for at least two weeks after black mold was found in two fabric bags used for packing clothing, food and other supplies, the U.S. space agency said on Wednesday.
The US Geological Survey map shows what it looks like if all the water one the planet is formed into a sphere over the US. All of the water on Earth would create a 860 mile wide sphere. —> Read More
A new study has suggested that exercising in your 40s could stop the brain shrinking, adding years to life expectancy
Who were Rome’s mystery immigrants? Skeletons found in ancient cemetery travelled to the city from North Africa and the Alps 2,000 years ago
Anthropologists at the University of West Florida have found the first evidence of poor people who appear to have immigrated to the capital city of the Roman Empire 2,000 years ago. —> Read More
Are you a dramatic dater or in a socially involved couple? Researchers reveal the four types of relationship – and which are most likely to lead to marriage
A University of Illinois researcher has identified four distinct approaches that dating couples use to develop deeper commitment. Each group has a pattern that can help bring couples closer. —> Read More
Aalto University observed trained typist and self-taught individuals to know if 10 fingers are needed to be a master typist. They found those who were self-taught only used 6 fingers but were just as fast. —> Read More