But about 20% of them also fire in exactly the same way if the monkey sees another monkey (or, indeed, a human) reaching out for food.
She has found that if a robot and a human reach for the same object simultaneously, and the robot never hesitates or varies its speed, people think the robot is being rude.
I'm all for a little eccentric fun once in a while, but when you line this fumbled Harry Potter-movie-soundtramateurmateur comedy up against Apple's recent holiday ad, it's easy to see why the average human reaches for an iPad in the tablet aisle, not a Lumia 2520.
A human tide reaches the shores of Djibouti almost every day.
The vegetable world, hints Thomas, has its own devices – like the walking palm, creeping slowly to a time beyond human reach.
"I think for most of us it's just a human heart reaching out to anyone who hurts," she said.
In January this year, a spike of PM2.5 pollution, microscopic soot particles which are 50,000 times smaller than the thickness of a human hair, reached dangerously high levels in Upper Thames Street, London.
By their account they reached the North Col in April, and on May 24 Wang Fuzhou, Qu Yinhua, Liu Lianman, and a Tibetan mountaineer, Konbu, climbed the slab by a human ladder, reaching the top at 4 20 am to place the Chinese flag and a bust of Mao Zedong.
Figure 2 presents propagation paths to a selected pixel of a human hair, reached from two different scribbles added to hair and skin region.
In the 14th round of this fight, Joe Frazier came as close to self-sacrifice as a human can reach without a crucifix and three nails.
