Test your observation skills with this optical illusion challenge! Spot the hidden owl in a pattern of birch trees.

IQ tests and brain teasers put our mental skills to the test, challenging us with abilities such as logical reasoning, ...

Background and Aim: Common endoscopic findings in stomachs with Helicobacter pylori infections include antral nodularity, thickened gastric folds, and visible submucosal vessels. These findings ...

The team, including researchers from the U.S. Department of Agriculture and multiple universities, analyzed two decades of field and satellite observations, spanning millions of square miles.

Optical illusions are incredible brain teasers that put your observation skills to the test and question your pattern recognition skills. In this thri ...