Sleep is a universal biological state that allows all animals, from mammals to amphibians, fish and even insects, to restore ...

Sleep looks peaceful on the outside, but inside the brain, it is anything but ...

Animals have their own emotions and, yes, even mental health struggles. Sometimes, their quirky habits could be a sign ...

What is it about the human physiology that leads us to use pillows, and does anyone know when we first came up with the idea?

Horses have been around humans for thousands of years, yet they manage to surprise people who claim to know them. They ...

Two pitbulls attacked a family’s golden lab in their fenced backyard on Jan. 13, leaving the dog with injuries requiring more ...

Fast-moving predators like coyotes punish hesitation and marginal gear, so your caliber choice has to balance speed, ...

What is it about human physiology that leads us to use pillows, and does anyone know when we first came up with the idea?

There are two types of sleepers in this world. Normal ones. And whatever this is.

Once you’ve been to the National Western Stock Show, you won’t forget it. Here are memories from Denver Post staffers. Big ...

Inside the body, a 24-hour rhythm, known as the circadian rhythm, quietly coordinates when we sleep, wake, eat and recover. This internal timing system helps keep organs and hormones working in sync.

Great for dogs, cats and any cute creature that's part of your family!