They say that a dog is a man's best friend. The dog was first animal that was domesticated. So let see how familiar are you with this four leg pasques.
You certainly don't see these kind of images every day, from tick close up, x-ray of a bat, to a high-tech micrograph of a zebrafish embryo. Check out some of the best images of the year.
There are two levels of Microsoft PowerPoint password protection, one to open the presentation and one to enable making changes to presentation. Let's check both of them.
