ignacio quintero
@ignacioq.bsky.social
CNRS Researcher at the Institut de Biologie de l’École Normale Supérieure, Paris.
Studying evolutionary processes using stochastic phylogenetic models.
Failed reincarnation of Montaigne.
Studying evolutionary processes using stochastic phylogenetic models.
Failed reincarnation of Montaigne.
We call this hypotheses the 'Zarathustran hypothesis', following Nietzsche’s idea that the maintenance of life does not merely follow from conservation, but rather from constant renovation, movement, and expansion. 3/3
October 17, 2025 at 9:12 AM
We call this hypotheses the 'Zarathustran hypothesis', following Nietzsche’s idea that the maintenance of life does not merely follow from conservation, but rather from constant renovation, movement, and expansion. 3/3
This species-level tendency to increase extinction and decrease speciation rates with age can be explained if evolutionary change concentrates at speciation, with a paucity of speciation causing lineages to lag behind a continuously reshaping (biotic and abiotic) environment. 2/3
October 17, 2025 at 9:12 AM
This species-level tendency to increase extinction and decrease speciation rates with age can be explained if evolutionary change concentrates at speciation, with a paucity of speciation causing lineages to lag behind a continuously reshaping (biotic and abiotic) environment. 2/3
Harrowing, how can anyone keep silent?
July 18, 2025 at 9:06 AM
Harrowing, how can anyone keep silent?
Sad to hear that Sebastião Salgado passed away. His photographs and Wenders portray (to not be missed, below) left such an impression on me.
May 25, 2025 at 12:20 AM
Sad to hear that Sebastião Salgado passed away. His photographs and Wenders portray (to not be missed, below) left such an impression on me.
Pinker, alongside Coyne and Dawkins (the “defenders” of free speech while at the same time asking to shut down protests), are now so blatantly trying to portray their privilege as a biological reality.
May 24, 2025 at 5:30 AM
Pinker, alongside Coyne and Dawkins (the “defenders” of free speech while at the same time asking to shut down protests), are now so blatantly trying to portray their privilege as a biological reality.
Indeed, I find that trends such as the tendency to increase in size at the clade-level (Cope’s rule), result from the non-exhausting emergence of new morphologies that are later curtailed by selective species sorting. 9/12
May 2, 2025 at 8:46 AM
Indeed, I find that trends such as the tendency to increase in size at the clade-level (Cope’s rule), result from the non-exhausting emergence of new morphologies that are later curtailed by selective species sorting. 9/12
Inspired by Wright's metaphor, he argued for "adaptive zones" wherein ecological opportunity is used up as diversity builds, except for when lineages transition from one zone to another, resulting in a tendency for rate decreases with few instances of very high evolutionary rates 4/12
May 2, 2025 at 8:46 AM
Inspired by Wright's metaphor, he argued for "adaptive zones" wherein ecological opportunity is used up as diversity builds, except for when lineages transition from one zone to another, resulting in a tendency for rate decreases with few instances of very high evolutionary rates 4/12
We obtained these results by combining comprehensive paleontological and neontological evidence in a phylogenetic framework, with a new model of diversification that integrates fossil observations and lineage-specific speciation and extinction rates: "the fossilised birth-death diffusion" 5/5
March 24, 2025 at 9:11 AM
We obtained these results by combining comprehensive paleontological and neontological evidence in a phylogenetic framework, with a new model of diversification that integrates fossil observations and lineage-specific speciation and extinction rates: "the fossilised birth-death diffusion" 5/5
This results in symmetric waxing and waning diversity phases that tend to be regulated by temporal changes in overall extinction rather than speciation. 4/5
March 24, 2025 at 9:11 AM
This results in symmetric waxing and waning diversity phases that tend to be regulated by temporal changes in overall extinction rather than speciation. 4/5
Our study challenges these long-standing hypotheses by uncovering a general and unreported alternative process; we find that species tend to lose macroevolutionary fitness with age, and thus that most diversity emerges from the few separate species that counter this general propensity. 3/5
March 24, 2025 at 9:11 AM
Our study challenges these long-standing hypotheses by uncovering a general and unreported alternative process; we find that species tend to lose macroevolutionary fitness with age, and thus that most diversity emerges from the few separate species that counter this general propensity. 3/5
Ok, free (cellphone provider) made me giggle
February 26, 2025 at 2:16 PM
Ok, free (cellphone provider) made me giggle
January 20, 2025 at 9:15 PM
I’ll forever remain dismayed about how most people remain silent while funding a live streamed genocide. It’s a harrowing lesson. @sanasaeed.bsky.social
December 29, 2024 at 8:23 PM
I’ll forever remain dismayed about how most people remain silent while funding a live streamed genocide. It’s a harrowing lesson. @sanasaeed.bsky.social
The unspeakable horror, with the so-called west full enablement, continues.
December 19, 2024 at 1:45 PM
The unspeakable horror, with the so-called west full enablement, continues.
As seen in mastodon:
November 10, 2023 at 9:49 AM
As seen in mastodon: