Pedro Santamaria
@p-santamaria.bsky.social
Retired researcher in Developmental Genetics, Evo-Devo. Drosophila. Polycomb Group. (PRC genes). Finder of "polyhomeotic", Nuclear transplantation in the egg. Cell mosaics and chimeras. Epigenesis in Drosophila. CSIC --> CNRS. Hobby: mosaics.
Antonio Garcia Bellido. (circa 1969).
November 11, 2025 at 9:25 AM
Antonio Garcia Bellido. (circa 1969).
Antonio Garcia Bellido a muerto ayer. Aqui en una foto de nuestros "Mafia meetings" con grandes "epígonos". Gracias él apredi a hacer investigacuión.
November 11, 2025 at 9:09 AM
Antonio Garcia Bellido a muerto ayer. Aqui en una foto de nuestros "Mafia meetings" con grandes "epígonos". Gracias él apredi a hacer investigacuión.
Reversal of matters of great signifiance. "Le Monde", Nov/5.
November 5, 2025 at 12:51 PM
Reversal of matters of great signifiance. "Le Monde", Nov/5.
Mosaic: "Gnosis" = knowledge (writtent in greek bottom-left). For a Asclepios. God of biologists. My own.
November 4, 2025 at 9:32 AM
Mosaic: "Gnosis" = knowledge (writtent in greek bottom-left). For a Asclepios. God of biologists. My own.
Opportunists. Nov. 3. At 3h. prob. Calliphora. At 6h. Drosophila. (No needed Blastophaga).
November 3, 2025 at 4:33 PM
Opportunists. Nov. 3. At 3h. prob. Calliphora. At 6h. Drosophila. (No needed Blastophaga).
Lycaenidae (the Blues+the Coppers+the Hairstreaks).
November 1, 2025 at 10:18 AM
Lycaenidae (the Blues+the Coppers+the Hairstreaks).
And (I suppose) get a similar tee-shirt to astonish friends... but 2026 intead of... (also the KPHTH number should change).
October 27, 2025 at 8:51 AM
And (I suppose) get a similar tee-shirt to astonish friends... but 2026 intead of... (also the KPHTH number should change).
- "Raise the East Wing" ! (only for ♂♂)(and drosophilists).
October 26, 2025 at 8:20 AM
- "Raise the East Wing" ! (only for ♂♂)(and drosophilists).
In ths picture she is (back line) ahead of me (and A.Ferrus) Behind Antonio Garcia Bellido. (A few years latter). With many other (some dead) friends. (Mafia Meeting).
October 21, 2025 at 7:57 AM
In ths picture she is (back line) ahead of me (and A.Ferrus) Behind Antonio Garcia Bellido. (A few years latter). With many other (some dead) friends. (Mafia Meeting).
Deciphering the Teotihuacan logogrammes and ideogrammes
October 15, 2025 at 7:11 AM
Deciphering the Teotihuacan logogrammes and ideogrammes
Two libidinous dipteres in the bluesky. Today. Gif sur Yvette.
October 14, 2025 at 9:47 AM
Two libidinous dipteres in the bluesky. Today. Gif sur Yvette.
Engaging in a creative pastime can slow brain ageing, according to a study (here ⬇️). But, better than dance the tango... When I stop injecting Drosophila eggs (to make chimeras f.i.) ... I made mosaics !
www.nature.com/articles/d41...
www.nature.com/articles/d41...
October 7, 2025 at 7:15 AM
Engaging in a creative pastime can slow brain ageing, according to a study (here ⬇️). But, better than dance the tango... When I stop injecting Drosophila eggs (to make chimeras f.i.) ... I made mosaics !
www.nature.com/articles/d41...
www.nature.com/articles/d41...
Toutes les procédures que j'essaye ( pour les cuire et les peler) sont foireuses.
Et pourtant mes arrière-arrière grand-parents, eux, se delectaient.
Et pourtant mes arrière-arrière grand-parents, eux, se delectaient.
October 5, 2025 at 11:57 AM
Toutes les procédures que j'essaye ( pour les cuire et les peler) sont foireuses.
Et pourtant mes arrière-arrière grand-parents, eux, se delectaient.
Et pourtant mes arrière-arrière grand-parents, eux, se delectaient.
Eric Wieschaus and Christiane Nüsslein-Volhard in 1979 ! (I was there).
journals.biologists.com/dev/article/...
journals.biologists.com/dev/article/...
October 4, 2025 at 7:47 AM
Eric Wieschaus and Christiane Nüsslein-Volhard in 1979 ! (I was there).
journals.biologists.com/dev/article/...
journals.biologists.com/dev/article/...
Crocus "autumnale", today, Gif sur Yvette, France.
October 3, 2025 at 11:57 AM
Crocus "autumnale", today, Gif sur Yvette, France.
Female at left.
September 17, 2025 at 3:58 PM
Female at left.
I am really old (31 years older). Found yerterday. "Souvenir" from my third (and last) 1994, MDBD, EMBO wokshop in Kolymbari. KPHTH.
September 16, 2025 at 6:37 AM
I am really old (31 years older). Found yerterday. "Souvenir" from my third (and last) 1994, MDBD, EMBO wokshop in Kolymbari. KPHTH.
Spider on the abaxial face of an holm oak leaf. Today. France.
September 5, 2025 at 3:42 PM
Spider on the abaxial face of an holm oak leaf. Today. France.
Epigenesis towards genesis in evolution.
I am sad (unhappy 😞 ) to announce that too few people have pursued the study of the (likely) use by ( not God !) Nature ! in tinkering (the odds jobs) with the epigenetic functions of Polycomb group of genes (PRC1 & PRC2) in the genesis of species.
I am sad (unhappy 😞 ) to announce that too few people have pursued the study of the (likely) use by ( not God !) Nature ! in tinkering (the odds jobs) with the epigenetic functions of Polycomb group of genes (PRC1 & PRC2) in the genesis of species.
September 5, 2025 at 6:44 AM
Epigenesis towards genesis in evolution.
I am sad (unhappy 😞 ) to announce that too few people have pursued the study of the (likely) use by ( not God !) Nature ! in tinkering (the odds jobs) with the epigenetic functions of Polycomb group of genes (PRC1 & PRC2) in the genesis of species.
I am sad (unhappy 😞 ) to announce that too few people have pursued the study of the (likely) use by ( not God !) Nature ! in tinkering (the odds jobs) with the epigenetic functions of Polycomb group of genes (PRC1 & PRC2) in the genesis of species.