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Mariana M. 🍉

@deerenoir

Ella/she/her | Biologist and science journalist You can read my work here: https://linktr.ee/mmastache.maldonado

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21.11.2024
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Latest posts by Mariana M. 🍉 @deerenoir

Tengo algunos en lista pero si van surgiendo otros en el transcurso del año, yo feliz. :)

08.01.2026 19:48 👍 1 🔁 0 💬 1 📌 0
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Why universities need to radically rethink exams in the age of AI Nature - Academia is unprepared for the rise in chatbot use among students — but with the right AI tools, personalized learning could soon become a reality.

Academia is unprepared for the rise in chatbot use among students

go.nature.com/4iPtlKz

06.12.2025 17:38 👍 44 🔁 19 💬 2 📌 4
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COLUMNA | "Quizás Argentina no sea un buen sitio para estar en la próxima pandemia. Quizás, de hecho, la provoque". Por Leila Guerriero social.elpais.com/hq6…

06.12.2025 18:49 👍 62 🔁 33 💬 3 📌 2
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Building Better Weather Networks - Eos A lack of weather data often leaves African communities vulnerable. Convergent efforts to improve observational networks throughout the continent are slowly filling the gaps.

Better weather and climate data in Africa could save lives and improve livelihoods. Multiple international efforts are at work improving these networks.

eos.org/features/bui...

Read more in our year-end issue: bit.ly/Eos-Nov-Dec2025

04.12.2025 23:45 👍 5 🔁 4 💬 0 📌 0
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The science of shopping addiction: what makes people buy loads of stuff? From China to Brazil to Germany, huge numbers of people are addicted to shopping, driven in part by companies that use gaming strategies.

This Black Friday, we're looking at the science behind compulsive shopping

go.nature.com/4pFok9N

28.11.2025 14:22 👍 26 🔁 9 💬 0 📌 0

Beyond the water shortage, Day Zero highlights fundamental human rights put in jeopardy and the disproportionate impact on vulnerable communities.🚰

My story for @eos.org @agu.org

06.11.2025 00:49 👍 9 🔁 4 💬 0 📌 0
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New Lessons from Old Ice: How We Understand Past (and Future) Heating - Eos Fragments of blue ice up to 6 million years old—the oldest ever found—offer key insights into Earth’s warming cycles. Researchers are using these ancient data to refine models of our future climate.

What’s it like doing fieldwork in Antarctica? 🥶 Sarah Shackleton and @blueicedude.bsky.social from @princeton.edu can answer that.

They just found a 6-million-year-old ice core—a key piece to improve our current climate models!

My story for @eos.org

eos.org/articles/new...

25.11.2025 21:48 👍 16 🔁 8 💬 0 📌 0

New research from John Higgins @blueicedude.bsky.social & Sarah Shackleton @princeton.edu, comments from Lidia Ferri, story by Mariana Mastache @deerenoir.bsky.social.

24.11.2025 13:07 👍 2 🔁 2 💬 0 📌 0
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New Lessons from Old Ice: How We Understand Past (and Future) Heating - Eos Fragments of blue ice up to 6 million years old—the oldest ever found—offer key insights into Earth’s warming cycles. Researchers are using these ancient data to refine models of our future climate.

Found in Antarctica, old ice is helping scientists “ground-truth” their models to predict our climate future. 🧊 #OldestIce #ClimateScience eos.org/articles/new...

24.11.2025 13:07 👍 14 🔁 7 💬 2 📌 0
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Rediseñar la calle sólo trae beneficios: más caminable, ciclable y segura, lo que repercute positivamente sobre el pequeño comercio.

16.11.2025 22:04 👍 54 🔁 13 💬 3 📌 0

Dignified work isn't just a big paycheck. It's about having the best conditions to do the job—especially with climate change impacting us now. 🌡️

A great story by @hannah-richter.bsky.social

14.11.2025 18:10 👍 6 🔁 4 💬 0 📌 0
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City Raccoons Are Evolving to Look More Like Pets City-dwelling raccoons seem to be evolving a shorter snout—a telltale feature of our pets and other domesticated animals

City-dwelling raccoons seem to be evolving a shorter snout—a telltale feature of our pets and other domesticated animals

14.11.2025 15:27 👍 382 🔁 86 💬 23 📌 50
A bookcase near a doorway, through which you can see another bookcase. There are maybe 150 books visible, with very few duplicates; they are shelved fairly tightly, with only one face out.

A bookcase near a doorway, through which you can see another bookcase. There are maybe 150 books visible, with very few duplicates; they are shelved fairly tightly, with only one face out.

A book open to a page with text about William Caslon, a printer and font creator. The text is actually in Centaur, which was created by Bruce Rogers. This is from Rogers' book about creating Centaur, actually.

A book open to a page with text about William Caslon, a printer and font creator. The text is actually in Centaur, which was created by Bruce Rogers. This is from Rogers' book about creating Centaur, actually.

Let's talk about books and the public trust.

📚🧵

Something that is easy to forget, in these days of barcode-scanning / auto-adjust pricing on third-party platforms for pennies plus shipping:

Booksellers are not merely people who sell some popular books in a competitive market.

12.11.2025 20:41 👍 2201 🔁 427 💬 32 📌 20

What will the loss of coral reefs cost the planet — and humanity?

12.11.2025 22:43 👍 33 🔁 19 💬 0 📌 0
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Science is a pawsitive force

12.11.2025 01:56 👍 35 🔁 7 💬 0 📌 0
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The rarest porpoises on Earth are hanging on The latest report shows that the estimated number of endangered vaquita porpoises has modestly increased

The latest report shows that the estimated number of endangered vaquita porpoises has modestly increased

06.11.2025 20:24 👍 522 🔁 97 💬 17 📌 10

Beyond the water shortage, Day Zero highlights fundamental human rights put in jeopardy and the disproportionate impact on vulnerable communities.🚰

My story for @eos.org @agu.org

06.11.2025 00:49 👍 9 🔁 4 💬 0 📌 0
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How the rush for critical minerals is neglecting human needs A focus on national security alone is limiting people’s access to key materials.

The world’s real concern should be universal access and affordability to the minerals that matter to human development

go.nature.com/4hNtI86

04.11.2025 18:11 👍 39 🔁 11 💬 2 📌 1

Y gracias a mis editores, Diana y Pablo, por creer en esta historia y acompañarme en todo este proceso con su retroalimentación.

Mi texto para @revistagatopardo.bsky.social ✍🏼

04.11.2025 20:15 👍 1 🔁 0 💬 0 📌 0

De eso charlamos con especialistas del IPN y el Instituto Nacional de Cancerología.

¿Es viable llevar nuestra copa menstrual y contribuir a la medicina?

Créditos a Jeoffrey Guillemard por las fotazas que acompañan el texto.

04.11.2025 20:15 👍 0 🔁 0 💬 1 📌 0

Las células madre deberían importarnos porque poseen un inmenso potencial para el tratamiento de enfermedades. Regeneran tejidos, constituyen la base de órganos y se utilizan en terapias médicas como los trasplantes de médula.

De ahí que se busquen fuentes cada vez más accesibles.

04.11.2025 20:15 👍 0 🔁 0 💬 1 📌 0
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Células madre en la sangre menstrual: ¿se puede liberar su poder reparador? | Gatopardo Las células madre, esa gran promesa de la medicina, están presentes en el “recurso” más natural e inagotable y accesible: la menstruación. Para aprovecharla es necesario sortear retos científicos de e...

Hace 20 años se descubrieron células madre en la sangre menstrual, buenísimo si consideramos que estas células se obtienen a través de costosas y (muchas veces) dolorosas biopsias. Pero la investigación se estancó.

¿La razón? Acá te cuento:

www.gatopardo.com/articulos/ce...

04.11.2025 20:15 👍 2 🔁 1 💬 1 📌 0
A white "closed" sign over a darkened, glass door.

A white "closed" sign over a darkened, glass door.

Despite the #shutdown that has left hundreds of thousands of workers without pay, the Trump administration is continuing its anti-environment agenda — prioritizing fossil fuel production, border wall construction, and other destructive programs.

Read on ➡️ bit.ly/48FbByt

20.10.2025 20:37 👍 14 🔁 8 💬 1 📌 1
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Mayor infraestructura ciclista protegida en una ciudad se asocia con menores cifras de colisiones y atropellos, contribuyendo a la seguridad de todos.

17.10.2025 13:50 👍 41 🔁 11 💬 1 📌 0
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Universities Reject Trump Funding Deal - Eos The “Compact for Academic Excellence in Higher Education,” developed by the Trump administration and sent to nine universities, proposes that the institutions agree to a series of criteria in exchange...

Multiple universities have rejected a Trump administration proposal asking them to agree to a series of criteria in exchange for preferential treatment in funding decisions. eos.org/research-and...

17.10.2025 16:42 👍 5 🔁 1 💬 0 📌 1
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Forget EVs. Cycling is revolutionising transport Pedal power is booming, spinning up a new culture war

"En Londres las 🚲 superan en número a los 🚘 en la City, en París en toda la ciudad y en Ámsterdam y Copenhague los viajes en bici siguen creciendo. En la capital danesa las bicicletas representan casi la mitad de los desplazamientos al trabajo y a la escuela" www.economist.com/internationa...

14.10.2025 20:51 👍 80 🔁 19 💬 2 📌 1
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Fuerza natural | Restaurar la Sierra de Guadalupe: una apuesta por el agua y la resiliencia - Este País Mariana Mastache-Maldonado explora cómo en la Sierra de Guadalupe, al norte de la Ciudad de México, se impulsan proyectos de infraestructura verde que restauran el bosque, recargan los acuíferos y for...

Soy fan de escribir desde los territorios y las soluciones. 🔥

La Sierra de Guadalupe, zona importantísima (aunque, a veces, olvidada) hoy cuenta con muchas manos para regresarle su resiliencia a través del agua. 👐🏼

Les cuento más en mi historia para Este País: estepais.com/ambiente/fue...

15.10.2025 01:25 👍 1 🔁 0 💬 0 📌 0
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Fuerza natural | Restaurar la Sierra de Guadalupe: una apuesta por el agua y la resiliencia - Este País Mariana Mastache-Maldonado explora cómo en la Sierra de Guadalupe, al norte de la Ciudad de México, se impulsan proyectos de infraestructura verde que restauran el bosque, recargan los acuíferos y for...

¿Cómo logran este modelo de resiliencia? ¿Es suficiente?

Te cuento más al respecto en mi columna Fuerza Natural para Revista Este País:

estepais.com/ambiente/fue...

09.10.2025 21:59 👍 1 🔁 0 💬 0 📌 0
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Ya hay gente en marcha. “Sierra de Guadalupe Resiliente”, proyecto impulsado por la simbiosis entre Pronatura México, el Estado de México y empresas, le apuesta a proteger el agua y mejorar la calidad de vida de las comunidades (humanas y no humanas).

Aquí andábamos en campo:

09.10.2025 21:59 👍 0 🔁 0 💬 1 📌 0

La precariedad orilla a muchas familias a habitar sus laderas inestables. Nadie elige exponerse a esto. Es un foco rojo urgente para la protección civil. 🚨

Por eso, fortalecer la Sierra es una necesidad ineludible.

09.10.2025 21:59 👍 0 🔁 0 💬 1 📌 0