Omar Rafael Regalado Fernández

@mathchaos.bsky.social

4083 Followers 3735 Following

I'm a Palaeobiologist working on #dinosaur evolution and #phylogenetics (🏳️‍🌈bi). 🇲🇽 Advocate for #decolonisation in palaeo and STEM (he/him). ORCID: 0000-0002-6247-6181

A photo of an Edmontosaurus silhouette made out of wood, coloured in purple and with details outlined in black. A cardboard cut out of a little person rides the dinosaur with a photo of myself, hand on my glasses.
Una captura de pantalla del pronóstico del tiempo para hoy, mostrando 36 al momento (17:35) parcialmente nublado pero con alerta severa de calor. La temperatura sigue arriba de los 30 hasta las 21:00 con alerta constante.
A photo of me standing in front of a mountainous desert. The desert is all green, with lots of cactus. I'm wearing a paliacate in my head, blue t-shirt and shorts. Overlying the photo are the colours of the bisexual pride flag.
clipping of a screenshot showing I've been added to a block list called "Luddite left", and this description: "Wrong about AI or Crypto, probably wrong about other things too. Created by a script, I never looked at your profile, don't be sad. GM haters! Did you hear about the AI generated Monet?"
AI generated image of the inner ear. It shows an ear and then a spiral channel that just continues in fractal way inside with nonesensical patterns and labels like Scala vestibuli in the ear lobe, sensorineural hearing loss located in one of the trippy spirals and "Sluid fluid flow"
Screenshot of a streaming of the La Mañanera press conference in Mexico City. Claudia Sheinbaum is at a letrine speaking, wearing a purple traditional Mexican designer dress. She is looking with the expression of someone who cannot believe what she is saying and has an ironic look. On the corner, a woman wearing black makes gestures in Mexican Sign Language. Claudia is pointing at the evidence submitted by the US DOJ in a screen: a notebook sheet with handwritten numbers and names (most of the names redacted). The piece of paper says "Juanito 30,000 (pesos)" circled in red.
network plot of the recursive iterations of matrix modifications with a cutoff date of 2007 showing the different transactions over the years and the type of changes made every iteration (characters or taxa)
Wednesday 8 April 2026 We welcome the two-week ceasefire concluded between the United States and Iran today. We thank Pakistan and all partners involved for facilitating this important agreement. The goal must now be to negotiate a swift and lasting end to the war within the coming days. This can only be achieved through diplomatic means. We strongly encourage quick progress towards a substantive negotiated settlement. This will be crucial to protect the civilian population of Iran and ensure security in the region. It can avert a severe global energy crisis. We support these diplomatic efforts. To this end, we are in close contact with the United States and other partners. We call upon all sides to implement the ceasefire, including in Lebanon. Our Governments will contribute to ensuring freedom of navigation in the Strait of Hormuz.
A very stylised figure of Jesus with oval head and prominent cheeks, long lomns and jazz hands a top an frontispiece at a large metal door.
UN vote chart with an alphabetical list of the UN countries showing 123 votes in favour, 52 abstentions (all European delegations, NZ, Australia) and 3 against (Israel, US, Argentina).
A banner with the trophy of the World Cup, the shields from the North American Federations of Football and the words "Boycott 2026".
Me leaning back in a very uncomfortable pose with an abyssinian cat, making biscuits on my side. I have a blue hoodie and in the background a fancy carpet hanging on the wall.
A diagram showing four nodes connected by arrows in a cycle. "Paleontological community identifies research priorities as Big Questions" leads to "Use Big Questions to communicate relevance and importance of palaeontology" leads to "Secure funding, resources and staff to pursue Big Questions" leads to "Conduct research to generate more questions and inform society"
A wide angle photo showing wooden drawers piled up in metal shelves. They are a lot! Foto panorámica mostrando cajones de madera apilados en estantes de metal. Son un montón!
A display case layout planning. Labels placed next to bones of young and adult Edmontosaurus in a purple background.
Poster for the new exhibition "Edmond, the last days of the dinosaurs" (in German). A closeup to an Edmontosaurus, also known as a duck-billed dinosaur, looking at the sky in a dark background.
Un símil de emoji de una carita de gato derritiéndose. Sus ojos desalineados y boca a medio caer
Bunting with dinosaurs hanging from a wood ceiling. White wall as background and a couple of frames. Cenefa con dinosaurios colgando del techo de madera. Una pared blanca de fondo con unos cuadros.
A screenshot from actor Viola Davis's post A photo of Claudia Sheinbaum, close up, smiling and raising her hand with a thumbs up. The thumbs up has a black ink mark, suggesting this photo was taken during an election cycle, as in Mexico it is customary to get the thumb rolled with ink to certify a vote. violadavis Mexico's president just sent rescue teams to Texas. After all the hate. After all the anti-immigrant policies. After all the racism toward brown people. She still helped. She still showed up. She still did the right thing. To a red state that wouldn't do the same for her. That's leadership. That's power. That's a woman. swagrman violadavis Much respect Madam President
A photo of a U-Bahn carriage in Frankfurt that has been decorated with a loose collage of specimens and labels to advertise the museum. A photo of me is on the side, my head printed on the window. The photo is black and white and I am holding my glasses on the right hand. --- Una foto de un vagón de metro en Fráncfort, decorado con un collage de especímenes y etiquetas para anunciar el museo. Una foto mía está impresa en un lateral, mi cabeza, en la ventana. La foto es en blanco y negro y sostengo mis lentes en la mano derecha.
Fictional map of a dinosaur Park showing several dinosaur pens (six carnivores in separate pens: Spinosaurus, Giganotosaurus, Troodon, Tyrannosaurus, Dilophosaurus, etc.) and a large herbivore pen (Camarasaurus, Centrosaurus, Plateosaurus, Thescelosaurus)
Book cover of Dinosaur Sanctuary 1 (the "o" in dinosaur is spelled with an egg). A Dino-keeper pats a smiley Tyrannosaurus rex. It says "story and art by Itaru Kinoshita" and "Research Consultant: Shin-Ichi Fujiwara
A photo of Marco Rubio on the left stretching Juan Ramón de la Fuente's hand in front of a blue fire place mantel. The US and Mexican flags on the sides frame the two men. On top of them, a painting framed oil portrait of James Monroe, painted from life by Thomas Sully in 1829.
English: A North American golden eagle (the eagle on the Coat of Arms of Mexico) shredding the nazi flag on a peak at sunrise. In the background are the Mexican Valley volcanoes, the Popocatépetl to the right and the Iztaccíhuatl to the left. The sky is green (left), white and red (right). --- Español: Un águila real (el águila del escudo de México) destroza la bandera nazi en un pico al amanecer. Al fondo se ven los volcanes del Valle de México, el Popocatépetl a la derecha y el Iztaccíhuatl a la izquierda. El cielo es verde (izquierda), blanco y rojo (derecha).
English: Two sculptures that look like they are made of obsidian are holding hands behind a quote from the Mexican president at the time, Gral. Manual Ávila Camacho: "Why do we fight for? For a world where the man is a friend of the man". They stand tall on a red curved surface with a blue sky in the background. Beneath all is the legend of "Secretary of Public Education". --- Español: Dos esculturas que parecen hechas en obsidiana se toman de la mano enfrente de la frase del entonces presidente mexicano, General Manuel Ávila Camacho: “¿Por qué luchamos? Por un mundo donde el hombre sea amigo del hombre”. Se yerguen sobre una superficie curva de color rojo con un cielo azul de fondo. Debajo de todo se lee la leyenda “Secretaría de Educación Pública”.
English: A propaganda poster with a big nazi soldier, identified by its symbols, holding in the right hand a bayonet piercing a piece of paper saying "Culture" and stepping on books with the words "Rights" and "Moral" on them. The background has two buildings up in flames, saying "Library" and "School", as the soldier holds a torch in his left hand. Beneath all, a quote from Hitler: "Knowledge would corrupt my youth". The colours match the muralist style of the epoch, with green and blue contrasting with the red lettering and the fire. ---- Español: Cartel propagandístico con un gran soldado nazi, identificado por sus símbolos, que sostiene en la mano derecha una bayoneta que atraviesa un papel que dice "Cultura" y pisa libros que tienen escritas las palabras "Derechos" y "Moral". Al fondo, dos edificios en llamas, que dicen "Biblioteca" y "Escuela", mientras el soldado sostiene una antorcha en la mano izquierda. Debajo de todo, una cita de Hitler: "El saber corrompería mi juventud". Los colores coinciden con el estilo muralista de la época, con el verde y el azul en contraste con las letras rojas y el fuego.
Photo of two people reading the report at a table decorated with the temperature stripes of Germany (I think) in front of an exhibit. The exhibit is the model of a water drop with lots of microorganisms.
Revue de Paléobiologie, Genève (2025) 44 (2): 1-45 Bones of dinosaurs and other reptiles from the Triassic-Jurassic of the Connecticut Valley: Over 200 years of published history Peter M. Galton 1, Omar Rafael Regalado-Fernández 2 & James O. Farlow 3* 1 Professor Emeritus, University of Bridgeport, Bridgeport, CT, USA; Curatorial Affiliate, Peabody Museum of Natural History, Yale University, New Haven, CT, USA; present address: 10150 Torre Ave, Apt. 101, Cupertino, CA 95014- 2152, USA; pgalton@bridgeport.edu 2 Senckenberg Museum of Nature, Senckenberganlage 25, D-60325, Frankfurt am Main, Hesse, Germany; omar-rafael. regalado-fernandez@senckenberg.de 3 Department of Biological Sciences, Purdue University Fort Wayne, 2101 East Coliseum Boulevard, Fort Wayne, IN 46805, USA; farlow@pfw.edu * Corresponding author
A screenshot of my Google maps accessed from Germany showing the label "Gulf of Mexico (Gulf of America)". The map also shows stars of the places I've been to in Mexico and a little icon for my home town.
A map of the Geography of the Gulf of Mexico. Off the coast of the US there is a platform of 200 m depth that has the Texas-Louisiana shelf, the Florida shelf, which extent southwards down the Mexico coast as the East Mexico Shelf and around the Yucatán Península as the Campeche Bank. The shelf is followed by an Escarpment that reaches up to 2000 m that on the north is called the Sigsbee Escarpment and in the south is called Campeche Escarpment. The whole body of water sits on the Mexico Basin, with a depth of 4376 m.
Cover of the book The Sympathizer. It's a bright red with yellow letters. In the middle, a lithograph style face of who I think is the protagonist. On top: (in yellow) "New York Times Bestseller", "intelligent, relentlessly paced, and savagely funny — Wall Street Journal (Best Books of the Year)" (in white). Two badges left and right: Andrew Carnegie Medal for Excellence in Fiction and Winner of the Pultizer Prize. Below: Viet Thanh Nguyen (author's name) and" Remarkable debut... Both thriller and social satire"— Philip Caputo, New York Times Book Review (Cover Review)
A screenshot of the Goods Unite Us website shows the American Museum of Natural History's donation by senior employees and/or company distribution: 93% for Republicans and 7% for Democrats.
A screenshot of the Goods Unites Us website shows that Universal Studios (Comcast Corporation) has given 51% of donations to Democrat candidates and 49% to Republicans. An avatar with a red diagonal on top of "Roe" indicates that "Based on Goods Unite Us’s independent analysis, this company is one of the top 25 contributors to the group of Senators who flipped the Supreme Court conservative."
What do AI hallucinations look like? AI hallucinations, or this made-up info, could be things like: Made-up facts. 'Cats are actually canines – like dogs.' (That’s not true! They’re felines.) Made-up people. 'The first person to walk on Mars was Sundar Pichai.' (No human has been to Mars yet!) Statistics. '47% of all statistics are made up.' (No one could know that!) Or any type of info really! What can I do about AI hallucinations? There’s more about this in another question (Why can Gemini get things wrong?), but basically double-check Gemini’s responses.
Photo of a sunset taken from a road. Top is cloudy, partly covering the sun, a dense forest beneath and silhouette of mountains. On the right, silhouettes of a traffic sign and a light post. ==== Fotografía de un atardecer tomada desde una carretera. Arriba, el cielo está nublado y cubre parcialmente el sol. Debajo, hay un denso bosque y se ven las siluetas de unas montañas. A la derecha, las siluetas de una señal de tráfico y un poste de luz.
Arrest edit On 15 January 2016 Humberto Moreira was arrested by the government of Spain in the Barajas Airport, and charged with money laundering and embezzlement. The arrest was done on request of the US government.[2][10][11] It was reported that the Spanish government's anti-corruption prosecutor was investigating the relation between Moreira's money laundering operation[12] and los Zetas drug cartel,[13] [14] and stated that the assassination of Moreira's son in 2012, was in retaliation of a money laundering operation where the Los Zetas cartel did not get their share.[14][15] On 22 January 2016[16] Moreira was granted restricted release on a bail,[17][18] and is waiting for a trial and the end of the investigation.
Foto de un árbol de navidad en la plaza vieja de Fráncfort del Meno. El árbol miden unos 10 metros y está frente a unos edificios administrativos. En la base se ven un montón de luces decorando los puestos del mercado navideño.
Line drawing of a sea horse coloured with puntillism in blue, grey and green.
A photo of me at a lectern, rising my hands to my the height of my shoulders, have my hair in a bun, a yellow lanyard and blue jumper. The slide has an image to visualise the taxonomic history of Plateosaurus as bubbles to recognise sets of species. It's not legible, so it looks like bubbles and lines with dinosaur silhouettes
My Top Songs: 1 Shut Up and Dance, Walk the Moon, 2 Hey Soul Sister, Train, 3 Doomsday Blue, Bambie Thug, 4 Zorra, Nebulossa, 5 Geronimo
Photo of a grand piano in front of a fin whale skeleton flanked by an orca and a purpoise skeleton, lit in blue.
Cellist playing sat in front of a Diplodocus skeleton, room lit in blue.
Arriba una foto de hace 22 años, con el Popocatépetl de fondo durante un práctica de campo de Ciencias de la Tierra y abajo una foto mía de este otoño en el Jardín Botánico Helia Bravo, con la sierra y cactus de fondo
Diagrama de un cono orientado de forma que la base esté a la izquierda, mostrando un segmento que conecta dos puntos desde el centro de la base del cono hasta el centro de masa del cono (situado a un cuarto de la distancia de la base). Al lado, tres flechas representan el espacio 3D.
Diagrama de un triángulo con la base a la izquierda y la punta hacia la derecha. Al lado, dos flechas que apuntan en direcciones diferentes en un ángulo de 90 grados para indicar un espacio bidimensional.
Diagrama que muestra un segmento horizontal que conecta tres puntos equidistantes.
Diagram of a cone oriented so that the base is to the left, showing a segment connecting two points from the centre of the base of the cone to the centre of mass of the cone (placed one-quarter distance from the base). Alongside, three arrows represent the 3D space.
Diagram of a triangle, with the base at the left and the tip towards the right. Alongside, two arrows pointing in different directions at a 90-degree angle to indicate a 2 dimensional space.
Diagram showing a horizontal segment connecting three points.
An agnostid fossil of dark grey colour and on a brown matrix. The agnostid looks like a flattened oyster, with a large hinge separating the sides. On the left, the "head" has a shield surrounding a dome where the mouth parts would be (on the other side). The right side, the "tail", is similar to the head, but the dome divides the shield into two parts.
Photo of my Chrome console showing old tweets being deleted...
Image of a tapir looking towards the left side of the photo at the top of a rock. The tapir has black fur on the legs and dark brown fur on the back, dark grey in the face and white in the cheeks and throat.
Photograph of a mould of a complete trilobite preserved on a slate, quite deformed (right side is compressed, and left side is expanded)
Photograph of the main dinosaur gallery in Berlin showing a mounted skeleton of Giraffatitan occupying almost all the height of the museum's building.
Dickson in his study of first grade school children in certain public schools in California, while his number of cases was small, found important differences in the intelligence quotients of the various groups when tabulated under racial stocks. A summary of his data follows: TABLE III. SHOWING DIFFERENCES IN INTELLIGENCE QUOTIENTS IN FIRST GRADBS BY RACIAL STOCK Race / No. of cases/ Median I.Q. Spanish /37 / 78 Portuguese / 23 / 84 Italian (chiefly Southern Italy) / 25 / 84 North-European born / 14 / 105 American (North-European ancestry) / 49 / 106
Cover of "Boys Keep Swinging" by Jake Shears, with an image of Jake Shears on one of his shows, glitter outfit, and in pink and purple colours
Cover of "The Idea of the Brain" by Matthew Cobb, showing a realistic brain diagram in pink as if it was cut out from the pages of the book.
1 Fave = 1 pic of a book in my personal library (maybe with a comment, maybe not, we'll see)
Battle of Chapultepec during the Mexican-US War, painting by Carl Nebel. The US forces are dressed in blue, firing towards the castle in the background, covered in smoke.