It is the blended and muted colors in between that are often difficult to tell apart.
The two regimes are not easy to tell apart: the khaki-clad police are helmeted and heavily armed.
Are Serbs and Croats, who share their religions with others, but not with each other, and whom no geneticist could tell apart?
Last I checked, peanut butter and turkey were easy to tell apart.
FORBES: Memo to Apple's Experts: Never Cite 'Peanut Butter' In Testimony
Germany and Holland were once polar opposites, but today they are increasingly difficult to tell apart and they don't dislike each other much anymore either.
Other primates had been tested, but they had been tested on human faces based on the assumption that ours are the easiest to tell apart.
In winter of course healthy and sick ash trees are difficult to tell apart as the leaves will all have fallen to the ground.
But in the piriform cortex the odours that rats could tell apart produced distinct patterns of activity, while those they could not distinguish produced identical patterns.
She then revealed that a Californian variety called petite sirah was actually two different grapes called durif and peloursin that even wine snobs were unable to tell apart.
AIDS. The likelihood that a mutant protein can slip through unnoticed is small: the spectrometer can tell apart proteins that differ by less than a tenth of a proton mass in weight.
The researchers then trained a new group of rats to discriminate between the odours the first animals could not tell apart by rewarding them over and over with sips water for choosing the appropriate hole.
One concern raised by such contaminants is that chemically, radioactive and non-radioactivie iodides are too similar for the body to tell apart, thus raising the risk that radioactive iodides can accumulate and lead to further health risks.
FORBES: Researchers Develop Material to Remove Radioactive Contaminants From Drinking Water
When suicides are dredged from the Seine, it is said, the lovers and the debtors are easy to tell apart: the lovers have paint under their nails, from trying to claw their way back on to the bridge at the last moment, whereas the debtors sink like stones.
But nothing blesses those who, like Simon Legree, employ such slaves but can't be bothered to tell them apart.
And he needed to be able to tell them apart as precisely as possible, to avoid recording two arrivals as one.
In fact, when glancing at the WP7.8 home screen, it's now tough to tell it apart from WP8 thanks to that tweak.
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My little brother even raised eight baby possums after their mother was hit by a car (all named Henry, so it was hard to tell them apart).
Gore for his part was taught at his prep school to choose the hard right over the easy wrong, which is a good lesson, assuming it's easy to tell those apart.
Equally troubling are websites selling counterfeit merchandise, some so sophisticated they include anti-virus logos and the seal of the Better Business Bureau making them almost impossible to tell them apart from legitimate vendors.
The stock fell to an eight-year low after RIM announced that it would have no new BlackBerry models until late 2012 and, according to analysts, the problem with the current line-up is that there are so many models and features, nobody can clearly tell them apart.
There are likely to be enough policy differences, for example over Europe, for voters to tell the parties apart.
And both conflicts have prompted us to wonder, how do members of opposing ethnic or religious groups tell each other apart?
The difference is that, with government an increasingly hermetic place, it will be harder than ever to tell the two apart.
There are about a dozen employees ambling about, some dressed so casually it's hard to tell the veterans apart from the college-student interns.
After about 15 minutes, it was easy to tell the surfers apart by their style of surfing, their handling of the board, their skill, and their playfulness.
But as the case proceeds, we can be confident that Samsung will remind the jurors that if they can tell peanut butter apart from turkey, they can distinguish Samsung and iPhones, too.
FORBES: Memo to Apple's Experts: Never Cite 'Peanut Butter' In Testimony
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