There are many different distributions that use Ubuntu as a base, but one you might not have heard of is Black Lab Linux. Black Lab Linux uses – you guessed it -a cute black labrador retriever as its mascot, and the distro itself is focused on providing a compelling and easy to use desktop version of Linux. Toward that end they’ve tried very hard to create a desktop distro that someone coming from a Mac or Windows could jump in and use, even if they are completely new to Linux.