Eternaljourneytmbr - Untitled

eternaljourneytmbr - Untitled

More Posts from Eternaljourneytmbr and Others

9 months ago

src for bite force figure in tags: Freeman, Patricia W. and Lemen, Cliff A., "Measuring Bite Force in Small Mammals with a Piezo-Resistive Sensor" (2008). Mammalogy Papers: University of Nebraska State Museum.

Normally would say 'Lasiurini are never not cute', but this particular image...

Hoary Bat

Hoary bat

no source, was sent to me. posting it because it's fucking funny


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5 months ago
So I Just Found The Most Useful Photo Album In Existence For Tumblr Arguments
So I Just Found The Most Useful Photo Album In Existence For Tumblr Arguments
So I Just Found The Most Useful Photo Album In Existence For Tumblr Arguments
So I Just Found The Most Useful Photo Album In Existence For Tumblr Arguments
So I Just Found The Most Useful Photo Album In Existence For Tumblr Arguments
So I Just Found The Most Useful Photo Album In Existence For Tumblr Arguments
So I Just Found The Most Useful Photo Album In Existence For Tumblr Arguments

So I just found the most useful photo album in existence for tumblr arguments

11 months ago

Brandt's Bat: researchers once documented a case in which a Brandt's bat had survived in the wild for more than 40 years, making this the longest-living bat species in the world

Brandt's Bat: Researchers Once Documented A Case In Which A Brandt's Bat Had Survived In The Wild For

In 1964, a wild Brandt's bat (Myotis brandtii) was captured, banded, and released by researchers in the Biryusa region of Siberia. The very same bat was eventually recaptured by another team of researchers in 2005; it would have been at least 41 years old by then, making it the oldest bat ever recorded.

The previous record-holder was also a Siberian Brandt's bat (with an estimated age of 38 years).

Brandt's Bat: Researchers Once Documented A Case In Which A Brandt's Bat Had Survived In The Wild For

There are twelve other species within the genus Myotis that have been documented living past the age of 20, but the lifespan of the Brandt's bat is exceptionally long, especially compared to other small mammals.

This species (and the longevity of a few other bat species) defies our conventional understanding of the relationship between an animal's size and its lifespan -- smaller animals normally have a much shorter lifespan compared to large animals, partly due to their higher metabolic demands, but these bats represent a rare exception to that rule. In fact, with an average weight of just 4 to 8 grams (which is roughly the combined weight of 2 or 3 pennies), the Brandt's bat has the longest lifespan of any mammal relative to its size.

Brandt's Bat: Researchers Once Documented A Case In Which A Brandt's Bat Had Survived In The Wild For

Research suggests that its increased lifespan may be at least partially linked to a mutation in two of the genes that are related to growth. This article describes the results of one particular study:

Genes for two proteins involved in growth — called growth hormone receptor (GHR) and insulinlike growth factor 1 receptor (IGF1R) — showed changes that also appear among other long-lived bat species. Previous studies in mice and other animals suggest genetic changes in GHR and IGF1R are linked with longevity. For instance, mice with mutations in GHR live twice as long as normal mice, said study researcher Vadim Gladyshev, a geneticist at Brigham and Women's Hospital in Boston.

These same genetic changes also may be responsible for the bats' small size ...

"We think the bat's life span is, in part, an unintended consequence of its small body size."

Brandt's Bat: Researchers Once Documented A Case In Which A Brandt's Bat Had Survived In The Wild For

There are a few other factors that may also play a role:

Brandt's bats also hibernate and roost in caves — behaviors that may help them avoid predators and extreme weather conditions, and contribute to their longer life span, the researchers said. The Brandt's bat also takes a relatively long time to reach maturity, and it does not produce many offspring — two characteristics seen in larger, longer-living mammals.

Brandt's Bat: Researchers Once Documented A Case In Which A Brandt's Bat Had Survived In The Wild For

Note: nearly all of the articles that I came across refer to the 41-year-old bat as a "Brandt's bat," but at least one other source uses the term "Siberian whiskered myotis," instead. That term simply refers to the Siberian variety of the Brandt's bat (subspecies Myotis brandtii sibiricus) in particular.

Sources & More Info:

The Journals of Gerontology: A New Field Record for Bat Longevity

Bat Conservation International: Myotis brandtii

Nature: Genome Analysis Reveals Insights into Physiology and Longevity of the Brandt's Bat, Myotis brandtii

Nature: DNA Methylation Predicts Age and Provides Insight Into Exceptional Longevity of Bats

New Scientist: Gene Clues May Explain Why Brandt's Bat Lives So Long

3 months ago
Overhead view of the international Space Station orbiting above Earth as day turns to night. Credit: NASA

Spinoffs: Space Station Innovations in Your Cart (and Heart!)

You might think NASA technology is just spaceships and telescopes, but did you know the camera in your cell phone is, too? It’s one of many NASA innovations now found everywhere on Earth.

The International Space Station has had crew living on it for 25 years straight. In that time, the space station has enabled a tremendous amount of research, helping NASA and scientists better understand long-term living in space – but it’s not just knowledge coming back down to Earth! Technologies developed for the space station and experiments conducted aboard the orbiting lab also benefit people on the planet below. Here are a few of these inventions, or spinoffs, you can find in your everyday life.

A woman applies sunscreen to a young girl’s face at the edge of a swimming pool. Credit: Getty Images

A Sunscreen That Blocks Radiation in Space – and on Your Face

After surviving for 18 months outside the International Space Station, an extremely hardy organism is now improving sunscreens and face cream products from a cosmetics company, which licensed use of the organism from NASA’s Jet Propulsion Laboratory.

Astronaut Sunita Williams flexes her arm muscles as she uses a resistive exercise device on the International Space Station. She wears what looks like football shoulder pads, which have cables connecting them to the device. Credit: NASA
A man uses the Bowflex Revolution exercise machine. He is holding a strap attached to a cable. Credit: Bowflex

Build Muscle With or Without Gravity

Muscles atrophy quickly in space, so when astronauts began long stays on the International Space Station, they needed some specialized exercise equipment. A resistance mechanism made of a coiled metal spring formed the basis of the first way for astronauts to “lift weights” in space. Soon after, that same design became the heart of compact home gym equipment.

Fresh chile peppers are pictured growing inside the International Space Station's Advanced Plant Habitat shortly before being harvested. Credit: NASA

Fresh Greens Every Day of the Year

The need to grow fresh food in space pushed NASA to develop indoor agriculture techniques. Thanks to the agency’s research, private companies are building on NASA’s vertical farm structure, plant-growth “recipes,” and environmental-control data to create indoor farms, resulting in higher crop yields and better-quality produce while conserving water and energy and eliminating the need for pesticides.

NASA astronaut Megan McArthur installs a new ADSEP-2 (Advanced Space Experiment Processor-2), which looks like a metal rectangular box, containing ADSEP-UMAMI samples inside the Kibo laboratory module aboard the International Space Station. Credit: NASA

Cultivating Hearts and Knees in Space

Gravity is a significant obstacle to bioprinting cells and growing human tissue on Earth because heavier components settle to the bottoms of petri dishes. In the absence of gravity, each cell layer stays in place, which is how it’s possible to grow heart and knee tissue on the space station. The same principle also allows mixing of complex pharmaceuticals on orbit.

Three rows of solar panels stand at an angle in a grassy field at NASA's Kennedy Space Center in Florida. The sky is bright blue. Credit: NASA/Frank Michaux

Storing Oodles of Energy

NASA chose nickel-hydrogen batteries to power the Hubble Space Telescope and the International Space Station because the technology is safe, reliable in extreme temperatures, and long-lived. NASA’s improvements brought down the cost of the technology, which is now used by large-scale utilities and renewable power plants that need to store energy generated by intermittent sources.

You can read about many more products sourced from the ISS on spinoff.nasa.gov.

Make sure to follow us on Tumblr for your regular dose of space!


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7 months ago
Just A Bat Hangin Out On Your Dash.

Just a bat hangin out on your dash.

5 months ago
In The YA Animal Fantasy Genre Of The 00′s There Are Your Warrior Cats, Your Guardians Of Ga’hoole

In the YA Animal Fantasy genre of the 00′s there are your Warrior Cats, your Guardians of Ga’hoole and your David Clement-Davies series.

Then there’s Silverwing. Holy fucking hell, there’s Silverwing. The Silverwing series doesn’t stand out to me in that is groundbreaking or particularly poignant or a valid commentary of society or what have you. What makes it stand out is that it’s So. Fucking. Weird.

Like, ok. There’s a blood feud between the bats and the owls. The bats are under penalty of death if they look at the SUN. And the owls and manipulate fire. Also some scary cannibal bat fuckers are running amok being creepy and murdery and the owls are now waging genocide on the bats because they’ve been framed.

And that’s the first BOOK!

Things that also happen in the series: Canada is at war with Brazil. Humans use bats and owls as bio warfare against one another. There is a BAT HELL. Antagonists make pact with ancient Death God who wants to come to the world of the living and turn everyone into zombies.

It’s a great read for Halloween.

Here’s some characters. I LOVE Bats. So it was a joy to portray each of the characters based on their respective species. 

Art is mine. Characters belong to Kenneth Oppel bless his soul.

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