Alpine marmot couple wait for their turn, video

This 2016 video shows an Alpine marmot couple waiting for their turn, in the Karwendel mountains in Austria.

Thim Kooijman made this video.

Naked mole-rats and pain, new research

This video says about itself:

18 June 2015

Naked mole-rats are some of the most fascinating members of the animal kingdom – but just how unique are they? Turns out, they diverged from their nearest relative more than 31 MILLION years ago! Field Museum curator Dr. Bruce Patterson, and Yale postdoctoral researcher Nate Upham have determined they ought to be in their own scientific family. Now, can someone please update their Wikipedia page?

Read more about this discovery on The Field Museum’s website.

Here‘s the abstract for the paper:

Patterson, B. and Upham, N. “A newly recognized family from the Horn of Africa, the Heterocephalidae (Rodentia: Ctenohystrica).” (abstract)

Shout-out to Jillian at Chicago’s Lincoln Park Zoo for allowing us to get footage of their colony!

HUGE thank-you to Bruce and Nate for their help with this episode! And, congratulations to Bruce for being the 2015 recipient of the prestigious C. Hart Merriam Award from the American Society of Mammalogists!

From Science News:

Hot and spicy pain signals get blocked in naked mole-rats

by Laura Sanders

5:23pm, October 12, 2016

Like Marvel’s surly superhero Luke Cage, naked mole-rats are seemingly indestructible, hairless creatures that are impervious to certain kinds of pain. This last power has puzzled researchers, because like other mammals, mole-rats have functional versions of a protein called TRPV1, which responds to painfully hot stimuli.

It turns out that a different protein, TrkA, is the key to the missing pain signals, Gary Lewin of the Max Delbrück Center for Molecular Medicine in Berlin and colleagues report in the Oct. 11 Cell Reports. Usually, TrkA detects inflammation and kicks off a molecular reaction that produces pain sensation by activating TRPV1. But naked mole-rats produce a version of TrkA that doesn’t trigger this pain cascade.

That means that certain nerve cells don’t become more sensitive after encountering something hot, such as capsaicin, a molecule that puts the burn in spicy peppers. Because naked mole-rats spend their time in hot African climates, the rodents might have evolved to not need the pain signals that come from heat, the authors speculate.

Birds and squirrels in Cornwall

This video from Britain says about itself:

Videos & Sounds for Cats to Watch and Listen To – Birds and [Grey] Squirrels Being Awesome NEW

Filmed in October 2016

Video Produced by Paul Dinning – Wildlife in Cornwall

The birds include great tit, coal tit and nuthatch.

American chipmunk’s corn cob food, video

This video from the USA says about itself:

29 September 2016

Chipmunk shucks an entire ear of dried corn in record time and stores it away for cold winter days. That is not an easy task when the corn cob is bigger than you are! Admirable little rodents with an impressive work ethic and survival skills.

Red squirrel youngster eats corn cob

This video from the USA says about itself:

Cute Red Squirrel Kitten Eating Corn Cob

25 September 2016

Red Squirrel youngsters have left the nest box – always a blast as they explore their new world. This one tries tackling a hard ear of dried corn – it could use some lessons in technique from the chipmunks. While the Chipmunks are adept at rapidly cleaning an ear of corn and putting it into storage – Squirrels tend to try and eat it on the spot, usually just the soft interior.

Beaver in Dutch Friesland video

This 17 September 2016 video shows a beaver in IJlst town in Friesland province in the Netherlands.

Young red squirrels in the USA

This video from the USA says about itself:

14 September 2016

Three baby Red Squirrel “kittens” are ready to leave the nest box in the Great Smoky Mountains. I’m the first human they’ve ever seen. It’s been a bumper year for squirrels here and in Florida and a little bit earlier than years past, typically they are not leaving the nest until mid-October. This nest box while built for screech owls is really a squirrel nest box for breeding and winter shelter.