A Long Winter’s Nap No More

hibernating bear

Many bears hibernate during the long, cold, and dark winter months. (Photo credit: Ralph A. Clevenger/Corbis)

When temperatures get colder and the days get shorter, many mammals settle into a period of hibernation. But what effect will climate change — and the associated changes in weather patterns — have on this annual behavior? [Read more…]

I Am Mouse, Hear Me Roar

mouse

Mice and many other rodents make ultrasonic sounds that they use to attract mates and defend territories. (Photo credit: Digital Zoo/Getty Images)

Stammering speech, or stuttering, has traditionally been thought to be an indication of anxiety or stress. A large amount of evidence, however, has long supported the idea that it must have some genetic component. For instance, identical twins often both stutter, as do other family members. In 2008, scientists at the National Institute of Deafness and Other Communication Disorders identified that those who stuttered often had a mutation in the gene Gnptab. The discovery was particularly interesting, because, previously, the gene had only been believed to be related to “general housekeeping” of the body, such as digestion. How could a gene that affects every cell of the body cause something so mechanical as stuttering? [Read more…]

Practice Makes Perfect When It Comes to Birdsong

bird singing

Singing before daybreak helps songbirds to perfect their repertoire. (Photo credit: zakharov aleksey/Shutterstock Images)

It’s pitch black outside, but you can hear a bird trilling its little heart out. Why would a bird start singing before the sun rises? Doesn’t it know you’re still trying to get a little shuteye before the day begins? Scientists at Canada’s University of Lethbridge think they might have found the answer. [Read more…]

Sleep Like A Dolphin

dolphin

A dolphin rests with one eye closed. (Photo credit: urosr/Shutterstock)

Has this ever happened to you? You finally arrive at your destination, ready to get a good night’s sleep so you can begin your vacation, and then you find … you simply can’t seem to get a good night’s sleep. It’s not you. It’s a phenomenon sleep researchers have long known about, called the “first-night effect” or FNE.

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