Blue-ringed octopuses carry a killer concoction called tetrodotoxin (TTX), a potent neurotoxin that can paralyze living things, including humans. Tetrodotoxin is most famously known from pufferfish — ...

What may look like a piece of post-modern art is, in fact, an optical illusion that begins with a blurry cloud of colors. ... If you stare at the red dot in the middle, the blue circle will fade.

The three circles drawn in this photo seem like they are different shades of blue, but are in fact all the same color. Lenstore While many mind-blowing optical illusions can play with your brain ...

Is it the red circle or the blue circle, or do they both seem to be in the same plane? The optical illusion was shared on July 18 on Twitter. It has since been viewed over 1.1 lakh times, and the ...

It may look as if it's a little blurry, but make no mistake, collectors have focused on flow blue china. Although reproductions have been in circulation for 50 years, collectors and those who ...