New App for Borrowing/Lending Things

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You can find apps for everything nowadays, and some of them are really creatively useful or simply entertaining. We’ve seen an app for typing in various indigenous languages from North America and Australia, some environmentally-focused games, the potential for a prairie dog translator app, and an application to help monitor the plants in your garden. Now we’re learning about a new company that has an app to help coordinate loans of tools or other things among neighbors. Named Peerby, this social platform came to life in the Netherlands, and seems like a great idea to promote friendly and community-building interactions while also reducing consumption. Eleanor Beardsley reports for NPR’s All Tech Considered:

Millions of people use websites and apps like Airbnb to share their homes and Uber to transport people in their cars. A new company allows people to share things like power drills and bicycle pumps by connecting people who need them to people who have them.

It isn’t surprising that the idea for the borrowing platform Peerby originated in one of the world’s most densely populated countries — The Netherlands.

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Bees May Sleep to Maintain Learning Brains

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Bee in mid air flight carrying pollen in pollen basket. Credit: Muhammad Mahdi Karim

Bees are incredibly important to much of the world’s flora, and we are always happy to see when research on them is continuing. After all, the better we understand them, the better we can protect them. Elizabeth Preston reports for Discover Magazine’s blog that when young honeybees spend time in the hive, they spend more time sleeping afterwards, probably to absorb whatever they’re learning among all the other bees:

Facing a whole hive of bees at once can be overwhelming—even for a bee. Young honeybees sleep more after spending time in the hive than after being by themselves. They need the extra nap time, it seems, to build and maintain their learning brains.

The first surprising thing about this might be that insects sleep at all. “Since around the 1980s there is good evidence that insects show…characteristics of sleep,” says Guy Bloch, who studies bee behavior at the Hebrew University of Jerusalem. Yes, their brains are tiny and organized differently from ours. But they rest in a similar way. And just as sleeping helps us sort through the new things we’ve learned each day, there’s evidence that sleep in bees and fruit flies is also tied up with memory and learning, Bloch says.

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Systematically Distributing Holiday Cheer

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The holiday season is about giving and the classic song quantifies the largess. The American Museum of Natural History is home to many happy childhood memories and I embrace their scientific form of expressing holiday cheer. Not everyone can claim their “True Love” is a “Science Geek” – but kudos to AMNHNYC for helping us all be Science Lovers!

On the first of the twelve days, a partridge in a book of taxonomy.
On the second day of taxonomy, we give you two scorpions!
On day number three My true love sent to me A turtle in a 16th century book of taxonomy!
No calling birds here! Day four of the Twelve Days of Taxonomy is wasps.
On the fifth Day of Taxonomy my true love gave to me…white, feathery wings!
Day number 6, we bring you these beautiful Narcomedusans
Day seven of the 12 Days of Taxonomy is surprisingly scandalous!
On the eighth Day of Taxonomy My true love sent to me An ornate cuscus in a tree!
What is an anoplotherium? Why, it’s number 9 in the 12 Days of Taxonomy!
Lords A-Leaping! The 10th Day of Taxonomy includes a toucan and a bitter science rivalry.
On the eleventh Day of Taxonomy My true love sent to me A wooden bird from Papua New Guinea!
On the twelfth Day of Taxonomy My true love sent to me A riotous display of sea anemones!

 

 

 

Ancient Trees: Portraits of Time

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Photo by Beth Moon. Via thisiscolossal.com

For obvious reasons, we’re big fans of trees. We’ve shared a piece on tree-sitting (which is, of course, linked to tree-hugging), and featured an environmental history essay that included some hypothetical dendrochronology. Now, we’re happy to find some amazing photographs developed in the almost lost art of painstaking platinum/palladium processing by Beth Moon.

Photo by Beth Moon.

Abbeville Press on Beth Moon’s book of photography, Ancient Trees: Portraits of Time:

Beth Moon’s fourteen-year quest to photograph ancient trees has taken her across the United States, Europe, Asia, the Middle East, and Africa. Some of her subjects grow in isolation, on remote mountainsides, private estates, or nature preserves; others maintain a proud, though often precarious, existence in the midst of civilization. All, however, share a mysterious beauty perfected by age and the power to connect us to a sense of time and nature much greater than ourselves. It is this beauty, and this power, that Moon captures in her remarkable photographs.

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Counting Monarchs

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Creating Breeding Habitat for Monarchs: To reverse the breeding habitat loss in the U.S., the Monarch Joint Venture promotes the inclusion of native milkweed and nectar plants in restoration efforts across the country ranging from small gardens to natural areas and corporate landscapes. (Photo by Giuseppina Croce)

We’ve seen some information on how much people value monarch butterflies. Now we’re learning that the beautiful orange lepidopterans have their own citizen science Thanksgiving count and might soon be labeled as a threatened species under the Endangered Species Act if a petition has any effect.

Beloved by tattoo parlors and fantasy princess landscapes, the king of butterflies is in decline. During their annual migration, monarch butterflies are famous for gathering in innumerable flutters as they fly from summer breeding grounds in the U.S. and Canada to warmer sites in Mexico and California. At one time, there were over a billion monarchs making this journey. Now, less than 4% are left.

Over the years, human behaviors, particularly agricultural practices have contributed to the monarch’s decline. In a petition to protect monarchs scientists point to habitat loss as grassland is converted to farmland and overwintering sites are deforested as a major factor. On top of that, the cultivation of certain genetically engineered crops enable farmers to apply broad-spectrum herbicides killing weeds such as milkweed, the monarch caterpillar’s sole food source.

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Pink Pigeons in Mauritius

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Left, pink pigeon via Dick Daniels/CarolinaBirds.org/Wikimedia Commons; right Madagascan turtle dove via Roland zh/Wikimedia Commons.

We’ve featured pieces on another, less fortunate species of pigeon before, and it’s great to read news about a critically endangered species that has been making a comeback after conservation efforts. As the article by Jason Goldman for Conservation Magazine shows, however, there’s still a ways to go before the pink pigeon has fully recovered as a species:

The pink pigeon is the lone survivor of all the columbids – pigeons and doves – native to Mauritius. In 1990 the species was down to just nine individuals, but thanks to the work of the Mauritian Wildlife Foundation, there were some 400 individuals flying the skies of the island by 2013. In the year 2000, the IUCN downgraded the species from “critically endangered” to “endangered.” They’re not out of the woods yet, but their recovery remains an impressive and rare example of good news in conservation.

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Kleptothermy

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Photo of Blue-lipped sea krait (Laticauda laticaudata), Anemone Reef, Thailand. Credit: Jon Hanson.

We’ve featured a post on biological theft before, under the name of mycocleptism. In that case the thief was a species of beetle that lived off the fungal tunnels of another beetle species, and now we are learning of a different type of behavior: stealing heat. Apparently certain reptiles, which are unable to bask in the sun at night, have found an effective method of transferring warmth that does not involve time travel. Instead, they snuggle up in the nests of birds. Brian Switek reports on the phenomenon for Nat Geo below, but one question that seems to remain unanswered is whether the feathered members of the deal are getting anything out of their reptilian visitors. For example, sea snakes like the ones mentioned in the referenced article are venomous — could it be that their presence in a shearwater nest would protect the birds from potential predators?

Imagine for a moment that you’re a sea snake and you’re feeling a little chilly. That’s quite understandable for an ectotherm. Your body temperature rises and falls with that of your environment, and spending all day slither-swimming through the water can wick away your precious body heat.

You could bask in the sun to remedy the cold. That’s a classic reptile way of working some warmth back beneath those scales. But there’s another option. You could steal your warmth. All you’d have to do is find some seabirds.

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The Differences Between Rabbits and Hares

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A female European hare (right) boxes with a male in Wales. PHOTOGRAPH BY ANDY ROUSE, 2020VISION/NATURE PICTURE LIBRARY/CORBIS. Via National Geographic.

Thank you to Liz Langley from National Geographic for highlighting differences that we have always been curious about but never thought about looking into until they were laid out so clearly in a single place. And with cute photos and a couple puns to boot. The article below comes from Nat Geo’s “Weird Animal Question of the Week,” which we will be sure to visit in the future.

Hares and rabbits are in the same family, Leporidae, but they’re “different species, like sheep and goats are different species,” Steven Lukefahr, a geneticist at Texas A&M University in Kingsville, said via email.

Hares are also larger, have longer ears, and are less social than rabbits. The “most profound difference” is seen in baby hares versus baby bunnies, said Philip Stott, a wildlife ecologist at the University of Adelaide in Australia. (See National Geographic’s pictures of baby animals.)

First off, a hare’s pregnancy lasts 42 days, compared with rabbits’ 30-31 days with a bun(ny) in the oven.

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Let Them Eat Cake

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Thanks to NPR we learned that Kerala isn’t the only state with a history of Plum Cakes and Fruit Cakes in late December. We love this facinating non-sectarian history!

Cake knows no religion…. Jewish bakeries and Muslim bakers in a predominantly Hindu city, baking Christmas cakes round the clock. You could call it a triumph of capitalism. Or a slice of peace and goodwill for all. With almond icing.

The Beauty of Life With X-Ray Vision

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Python and protea flower. The snake’s trachea is visible (credit: Arie van ’t Riet / SPL)

Thank you to the BBC’s Earth section for sharing Dutch medical physicist and artist Arie van ’t Riet’s work, which he accomplishes with his home x-ray machine and dead flora and fauna.

Arie van ’t Riet has a unique view of life on earth.

As a medical physicist based in the Netherlands, van ’t Riet teaches radiographers about radiation physics and safety. As part of his teaching program, van ’t Riet searched for an example to demonstrate and visualise the influence of x-ray energy on the contrast of an x-ray image. The higher the x-ray energy, the lower the contrast.

“I arrived at flowers. After some years I started to edit and partly colour these x-ray images. And I added animals,” he says.

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Canadian Outdoor Hockey – Threatened by Climate Change?

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Photo of Cornell students playing outdoor hockey somewhere in NY, by Miles Luo

While a student at Cornell University, I played hockey out on a pond multiple times, and always had fun even on the occasions when several of us needed to use brooms or shovels as hockey sticks, and a crushed pineapple juice can as a puck. In recent years, it’s been a little tougher to find a good time to play since temperatures have fluctuated so wildly sometimes. Since my friends and I like to stay very conservative with our estimates on the ice’s thickness, an unusually warm day after a series of extremely cold — and typical Ithaca — ones can set us back a bit as we wait for a safer time to get on a pond.

So I at least partly understand the angst of all outdoor hockey-loving Canadians as described by Dave Levitan for Conservation Magazine:

Take anything from Canadians, anything at all—anything except hockey.

Few countries have such a relationship with an individual sport; cricket in India, soccer (football) in Brazil or various others, hockey in Canada. And while the Maple Leafs and the Canadiens aren’t going anywhere, the sport as it is played by millions of others in Canada is in serious danger thanks to climate change.

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Algae Could Turn Toxic Water Into Metal and Biofuel

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Contaminated water at Wheal Jane, where the Department for Environment is spending £2m a year on combating pollution. Photograph: Rex Features. Via The Guardian.

We’ve featured pieces on different biofuels before, though probably not enough of them. We’ve also recently seen an example of how science can help clean up the messes that other scientifically informed — but less environmentally scrupulous — activities create, like the new carbon-scrubbing structures that might be used in coal plants. The topic of bioremediation is one of great interest and which we plan on sharing more about, especially in the mycological realm. For now we’ll start with this story of algal bioremediation and resource recuperation in Cornwall, one of England’s most historically important mining regions. Jamie Doward reports for The Guardian:

A groundbreaking research project to clean up a flooded Cornish tin mine is using algae to harvest the precious heavy metals in its toxic water, while simultaneously producing biofuel.

If the project, which is at a very early stage, is proven to work, it could have huge environmental benefits around the world.

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The Glossiness of Tinamou Eggs

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Eggs from tinamous being used for research at Hunter College. Tinamou eggs are up to 14 times as glossy as the average chicken egg. Credit Fred R. Conrad/The New York Times

Readers of the blog who have visited in recent months will know that I do a lot of work with chicken eggs for artistic purposes, and readers from years ago might remember that I worked with Celebrate Urban Birds at the Cornell Lab of Ornithology, and I often wrote about bird-related topics (and still do!). During one of CUBs’ photo competitions called Funky Nests, I posted on egg coloration, and looking back on that post I am very surprised to see that I didn’t mention the eggs of a family of birds called tinamous. I’m puzzled as to why I wouldn’t have written about tinamou eggs because they are curiously glossy. In addition to having quite pretty colors, the eggs are extremely shiny to the point of looking fake, or varnished by wood elves after they’re laid.

Perhaps I didn’t include tinamou eggs in my post because very little is understood about why their glossiness exists, as Rachel Nuwer reports for the New York Times this week in an article with a title that obviously caught my eye:

Easter Eggs Without a Kit

The Shy, Drab Tinamou Has a Stunning Palette That Still Holds More Mysteries Than Answers.

When it comes to shell color, most birds’ eggs conform to one of four motifs: colored with spots, colored without spots, white with spots or pure white.

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