Ravens Can Figure Out When Someone Is Spying on Them

Jana Mueller
Jana Mueller

Corvids, the family of birds that includes crows and ravens, are canny beasts. They've been known to exercise self-control, count, hold grudges, and more. Now, new research suggests they possess at least a rudimentary Theory of Mind—the ability to attribute mental states to others.

A study in Nature finds that ravens can tell when someone else can see them, guarding their food when a peephole to their cache is open. While previous research suggested that birds might have an awareness of other animals' mental states, the results have been inconclusive. The Nature study is evidence that corvids can do more than just track other birds' gaze; they may understand the concept of "seeing."

Vienna-based researchers set up two rooms separated by windows that could be closed with covers. These covers had peepholes in them that could also be opened or closed. First, the 10 ravens were each allowed to cache food, while other birds were in the next room and the windows were open or closed. Then, they were trained to look through the peepholes to find food in the other room, so that they knew that the holes could be used to see through the window covers. Afterwards, each of the ravens was again presented with food with one of the two peepholes open. The adjacent observation room didn't have any birds in it, but the researchers played the sounds of another raven recorded during one of the previous trials.

When the birds heard the sounds of another raven in the next room, and the peephole was open, the birds behaved as if they knew they were being watched—they hid their cache of food quickly and didn't add more food to it as often, as if they knew that it might be compromised. However, they behaved normally when the peephole was closed.

This suggests that ravens don't just track their competitors' gaze to know when they’re being watched, but can infer from past experience when they can be seen.

8 of Amazon's Bestselling Home Office Desks

JOISCOPE/Amazon
JOISCOPE/Amazon

If you've been working from home for the past six months (or longer), you're overdue for a high-quality office desk. And not just any old one, but a desk designed specifically for comfort and purpose, so you can organize everything you need for your 9-to-5 without having to worry about losing track of that important folder or planner.

The problem, though, is that there are so many options out there to choose from. That’s why we've stepped in to make the process a bit easier for you by compiling a list of the bestselling home office desks from Amazon. Check them out below.

1. Furinno Simplistic A-Frame Computer Desk; $237

Furinno/Amazon

This Furinno A-Frame desk is Amazon’s top home office desk at the moment. Though it may seem simple, sometimes that's all you need to make your space more efficient. The small desk hutch on top creates little cubbies for you to store papers, notebooks, or tools you may need throughout the day. There's even a bench on the bottom for you to put your feet up during the last few hours of the workday.

Buy it: Amazon

2. CubiCubi 40-inch Home Office Table; $95

CubiCubi/Amazon

For those looking for a sleek, modern desk that doesn't skimp on function, go for the CubiCubi. The metal frame, combined with the black wood surface, gives this table a sturdy, reliable feel. There's also a built-in side pocket to store all your papers out of eyesight but within arm’s reach. And according to the company, the whole thing should only take 10 minutes to assemble.

Buy it: Amazon

3. Coleshome 31-inch Computer Desk; $84

Coleshome/Amazon

This 31-inch desk from Coleshome is the perfect option for a small home office. Complete with adjustable leg pads for added stability, this desk can fit in any nook and is designed with simplicity in mind.

Buy it: Amazon

4. Mr. Ironstone Black L-Shaped Desk; $130

Mr. IRONSTONE/Amazon

This unique L-shaped desk is perfect for anyone looking to fit their workstation into the corner of a room. Measuring at 50.8 inches on both sides, you’ll get the most out of your surface by adding multiple monitors, a printer, and books all around.

Buy it: Amazon

5. Furinno Efficient Home Desk with Side Shelves; $53

Furinno/Amazon

If you want to make your office feel more like a study, then you’ll need somewhere to store all your tomes. This Furinno desk can help you make space to work and house all your favorite books nearby to grab whenever you need them. The multilevel shelves help make this desk feel more modern, while also creating plenty of storage space.

Buy it: Amazon

6. JOISCOPE 40-inch Computer Desk; $110

JOISCOPE/Amazon

This desk comes packed with plenty of storage space for your things while also providing a large, sleek worktop for you to spread out all day long. The oak finish on top also adds a bit of sophistication to your workday, even if you spend your lunch break perusing the latest cat memes.

Buy it: Amazon

7. Seville Classics Ergonomic Mobile Desk Cart; $44

Seville/Amazon

Standing desks have become more popular in recent years as people look for more ways to improve their posture and overall health. The Seville Ergonomic Mobile Desk can help you achieve your physical goals while assisting you with your work. The desk's height can be adjusted from 20.5 inches to 33 inches, and it has four swivel wheels, two of which lock in case you want to stay in one spot.

Buy it: Amazon

8. ComHoma Black Writing Computer Desk Office Folding Table; $100

ComHoma/Amazon

For a modern design, there's the ComHoma writing desk. The sleek metal bars on the sides and back of the desk add style, not clutter, and the 39-inch tabletop will give you ample space to work on whatever projects come your way.

Buy it: Amazon

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The Queen’s Guard May Have to Give Up Their Iconic Bearskin Hats

Can you tell that this is real bear fur?
Can you tell that this is real bear fur?
Defence Images, Flickr // CC BY-NC-ND 2.0

The UK’s departure from the European Union (EU) has given its leaders the chance to negotiate new trade deals and maybe even ban the sale of certain products—like fur. It’s something animal rights activists have long been pushing for, and a recently publicized letter from UK environment secretary George Eustice suggests that the government will indeed investigate the possibility.

As The Independent reports, Eustice wrote to the chief executive of the British Fur Trade Association that “once the UK’s future trading relationship with the EU has been established, there will be an opportunity to consider further steps it could take in relation to fur sales.” It’s far from a definitive proclamation, but since Eustice has seemed open to banning fur in the past, the letter has been taken as a positive sign for the anti-fur movement.

If the UK does eventually prohibit the sale of fur, this could mean the end of the authentic bearskin hats worn by the Queen’s Guard, who are most often seen stationed outside Buckingham Palace. According to Londonist, the 18-inch hats are created with fur from black bears killed during Canada’s annual black bear cull—a large-scale hunt that helps keep the population under control—and the UK Ministry of Defence purchases up to 100 new hats for the famously unflappable infantrymen each year.

The tradition of donning such eccentric headgear dates back to the Battle of Waterloo in 1815, when Napoleon’s Imperial Guard wore similar hats to make them seem taller and more intimidating. After the French were defeated by the Duke of Wellington and his British army, Britain adopted the hats as a symbol of victory.

But even if the UK does prohibit fur in the future, the Queen’s Guard could still keep the custom going. After all, there are plenty of convincing kinds of fake fur on the market these days. And as for what Queen Elizabeth II might think about the shift, we’re guessing she’d condone it; she herself gave up wearing fur products in 2019.

[h/t The Independent]