The US Sun

Everyone can see the rows of shells – but you have 20/20 vision and high IQ if you spot hidden crab in under 30 seconds

By Charlotte Maracina,

2 hours ago

EVERYONE knows the tongue twister, “Sally sells seashells by the seashore,” but can you spot the non-seashell in this tricky brain teaser?

Ocean enthusiasts will love this beach-themed illusion , in which guessers are challenged to find a creeping crab among dozens of seashells.

If you’re sitting in an office instead of a beach right now, take a couple of minutes to enjoy this beachy image courtesy of Betway Casino .

Don’t have a few minutes to spare?

Challenge yourself to find the hidden crab in under 30 seconds.

As summer shenanigans begin to wind down, take a moment to immerse yourself in this summer scene.

Looking at the picture, you can see a variety of shells in blue, red, pink, and orange.

However, after taking a closer look, you’ll notice a crab with a deceiving shell.

Can’t find the crab? No worries, we had some trouble, too.

If you’re still searching, start by looking at the left side of the image.

As you scan your eyes further down, you’ll notice an orange shell with pinchers and two eyes.

Don’t get crabby if you weren’t able to find it; practice makes perfect.

Try your hand at this next brain teaser.

Everyone can see the 9s circling the image, but can you spot the lucky number 6?

Time yourself to see if you can spot the six in under ten seconds.

If the numbers are bothering your brain, try spotting the parrot in this green scene.

Hidden among the leaves and branches is a parrot.

The bird is extra hard to find since it’s green, effortlessly blending into the green shrubbery.

“Background matching is perhaps the most common camouflage tactic,” said National Geographic .

Want one more to try out?

If you’ve been hard at work solving these illusions, try this tricky teaser which shows other people working hard, too.

However, this workplace has many more safety problems than it may seem.

You have 30 seconds to spot all the workplace hazards in this image.

Were you able to solve all the bonus illusions?

Researchers have developed many tests to show how various brain regions react to brainteasers and optical illusions. There are many benefits.

They are not only entertaining, but they also shed light on how our brains interpret visual data.
By giving your brain a little workout regularly, you enhance your ability to focus and observe details.
Studies have shown people who regularly challenge themselves with optical illusions and puzzles see big improvements in their problem-solving skills, concentration, and attention.
Improved concentration and attention span can help prevent cognitive decline in old age.
Optical illusions can improve eyesight by allowing you to see small print.