Horses Giraffes Elephants Blue Whales 
Answer: Horses
When it comes to getting by on little sleep, even the most caffeinated human worker has nothing on horses. Horses have very little in the way of sleep demands with the average horse spending four to fifteen hours a day on their feet in standing rest and a few minutes to several hours lying down, but only requiring around two and a half hours of actual sleep (occurring in many short intervals of about fifteen minutes each).
Not only do horses get by on very little sleep, but they can sleep both standing up and lying down. Although they may lay down more than once per day, horses only need to lay down (a requirement to reach REM sleep) for an hour or two every few days to meet their minimum REM sleep requirements. Horses stressed by the presence of predators or other stimulus in their environment may even go days without entering into REM sleep, but will eventually collapse, even if for a few minutes, to enter a deep sleep state and catch up.
Horses are hardly alone in their truncated sleep patterns, however, especially among grazing animals. Giraffes also sleep very little and spend most of their time on their feet–grazing animals need to maintain near constant alertness to ward off predators and escape quickly from danger.
Image courtesy of Vassil.
Sometimes, all you need out of your Philips Hue lights is for them to just turn on and off when you want them to, but if you’re hosting a party or just want to entertain your kids, animating your lights is a great way to kick things up a notch.
Think you know the answer? Click through to see if you're right!
Clearing your history from time to time shouldn’t be misconstrued as sneaky. It’s actually just a good practice to undertake. Over the course of time, you’re going to visit hundreds or even thousands of websites on your computer or smartphone. Not all these websites will necessarily be ones you’ll
For users of Windows Pro or Enterprise editions (and the Ultimate editions of Windows Vista and 7), the Local Group Policy Editor offers quick access to a number of powerful features you can use to control your PC. If you want to apply policy settings to specific users instead of the whole computer,
Microsoft is no stranger to controversy in the world of privacy, so it’s not too surprising that its flagship Xbox One console comes with such an extensive range of customizable privacy features. Users can configure dozens of settings, from how visible their gaming content is on Xbox Live down to
Not every app deserves a spot in your app drawer. Maybe there are some built-in apps you don’t use, or a few you don’t want others to see. Here’s how to hide apps from your app drawer with Nova Launcher.
Microsoft’s DirectX 12 and Apple’s Metal are next-generation graphics platforms. They provide lower-level access to graphics hardware, allowing game programmers to squeeze more performance out of the hardware. Vulkan is the cross-platform answer to Microsoft and Apple’s technologies.
For the most part, all of us are used to having a unique public IP address, but what do you do when that is actually not the case? What exactly is going on? With that in mind, today’s SuperUser Q&A post helps a confused reader solve an IP address mystery.
Philips Hue lights are great when they’re working properly, but sometimes it’s not all sunshine and roses. Here are some common issues that you might be coming across and how to fix them.
Think you know the answer? Click through to see if you're right!
