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Posts Tagged "Human"

@ScientificAmerican

Watch: How Do Knees Work? An Iron Egghead Sample Video

Can you explain science with seven everyday items? We’re looking for some creative minds to explain how a part of the human body works, or how a process occurs in it, in two minutes or less. No fancy equipment is needed, either—a smartphone camera will do. For inspiration, take a gander at this sample video, [...]

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Bering in Mind

The Sorriest Animal: Why We Seek Forgiveness

Investigators explore how to use an apology effectively

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Bering in Mind

The Misunderstood Penis

Gordon Gallup sets the record straight on the semen displacement theory

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Guest Blog

How Much Nature Do We Have to Use?

It’s so easy to slip into debt, but so hard to dig oneself out. Just ask the typical wage earner—even business and national leaders. People who know better still wait for that next paycheck, assumed pay raise or small miracle to help them catch up. As any accountant will tell you, accumulating debt is not [...]

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Illusion Chasers

Parallels Between Mantis Shrimp and Human Color Vision

Mantis shrimp. Photo credit: Roy Caldwell

Despite tremendous differences in human versus shrimp eye structure and brain circuitry, the striking similarity between the color sensitivities of primate brain color-selective neurons and shrimp photoreceptors provides evidence of a common computational strategy across extremely divergent species.

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MIND Guest Blog

Plenty of Pheromones in the Sea

As we sat in my car outside a silent movie theater in Los Angeles, my friend anxiously opened a plastic bag containing a white T-shirt she’d slept in for the past three nights. “Does it smell like me?” she asked nervously, gesturing the open end toward my face. I stuck my nose into the bag [...]

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MIND Guest Blog

The Dark Side of Power Posing: Cape or Kryptonite?

In 1942, the mild mannered Clark Kent excused himself from his friend Lois Lane to take an important call. Clark slipped into a phone booth (remember those?), and moments later Superman emerged. Have you ever wished that you had ability to step into a phone booth or bathroom for a minute to shed your insecurities [...]

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Not bad science

Is It Possible To Forget? Investigating the Suppression of Memories

scary-clown-1-580x435

Everyone has experiences happen to them that they’d rather forget about. Every so often though, you might have a reminder of that experience: perhaps someone says something to you or you see something that jogs your memory. When this happens, and that memory rises to the surface, you may try to block that memory, or [...]

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Not bad science

What Are You Looking At?: Is Gaze-Following Particularly Human?

gaze (2)

Imagine that you walk into a room, where three people are sitting, facing you. Their faces are oriented towards you, but all three of them have their eyes directed towards the left side of the room. You would probably follow their gaze to the point where they were looking (if you weren’t too unnerved to [...]

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Observations

Did big babies help bring human ancestors down from the trees?

smaller chimpanzee baby riding on mother

Relative to our ape brethren, humans give birth to really big babies. This especially substantial infant size—along with newborns’ large heads and general helplessness—helped to spur the development of more advanced social systems to help mother and child safe, researchers think. A new study examines the evolution of this trend to try to pinpoint when [...]

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Observations

New ape fossil challenges DNA evidence about ancient split from other primates

primate skull found that might illuminate human and great ape evolution

With high-speed DNA sequencing, scientists can look at slight genetic differences among humans, great apes and other primates to arrive at new estimates of when different ancestral groups split. These findings provide invaluable insights into the evolutionary past, especially when the fossil record is sparse, as it is for the period when the ancestors of [...]

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Symbiartic

The SciArt Buzz: SciArt Happenings in March/April 2013

Pulse

Oh, my. The more I look, the more I find. Get your sciart on, peeps! _____________ EXHIBITS: NORTHEAST REGION Pulse: Art and Medicine February 16 to April 13, 2013 The Mansion at Strathmore 10701 Rockville Pike North Bethesda, MD Imagine the place where art, science and the human body intersect: that’s the idea behind Pulse: [...]

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