Promising review: "Santa left this under the tree for my 9-year-old son, and he LOVES it! So easy to use and takes only a few ...

A perplexing optical illusion challenges viewers to find the numbers 64 and 49 hidden within a grid of repeating 46s. This brain teaser exploits pattern recognition bias, making it difficult to spot ...

Homo erectus is associated with a number of firsts in its 2 million years of existence, including being the first hominin to ...