#evolution

spektrum@anonsys.net

Michael E. Manns Blick auf die Klimageschichte und die Lehren, die sich aus ihr ziehen lassen, überzeugt. Weniger greifbar sind seine Hinweise zu konkretem Handeln. Eine Rezension

Ein Blick in die Klimageschichte kann helfen, den Klimaschutz sinnvoll auszurichten, ohne dabei Panik zu verbreiten. Das belegt dieses Buch. Eine Rezension (Rezension zu Moment der Entscheidung von Michael E. Mann)#Klimakrise #Klimawandel #Klimaschutz #Geschichte #CO2 #Umwelt #Nachhaltigkeit #Ökologie #JüngereDyraszeit #Erdgeschichte #KleineEiszeit #Hominiden #Urmenschen #Mensch #Evolution #Zivilisation #Paläoklima #ErdeUmwelt #Biologie
»Moment der Entscheidung«: Was die Erdgeschichte über den Klimawandel verrät

spektrum@anonsys.net

Die kognitiven Fähigkeiten von Vögeln erstaunen selbst Fachleute immer wieder. Wie schaffen es Vögel, trotz ihres winzigen Gehirns, Werkzeuge zu benutzen oder sich im Spiegel zu erkennen? Wie kam es zum Gesang der Vögel und was verbirgt sich dahinter? Wie kommt es zu den vielfältigen Farben und Mustern des Federkleids? Studien zur Embryonalentwicklung zeigen, auf welchen theoretischen Grundlagen die Farb- und Formenfülle im Tierreich beruhen. Und die Vorfahren der Vögel, die Dinosaurier, erwiesen sich als fürsorgliche Eltern.#Vogel #Vögel #gefiederteVielfalt #Kognition #Intelligenz #Gesang #Singvögel #Evolution #Brutpflege #Gefieder #Dinosaurier #Vogelwelt #Ornithologie #Vogelstimmen #Spatzenhirn #Wahrnehmung #Zoologie #Biologie
Vögel - Gefiederte Vielfalt

psychmesu@diaspora.glasswings.com

https://scholar.social/@animalculum/112213230751335215 animalculum@scholar.social - A frozen chunk of genome rewrites our understanding of bird #evolution
https://phys.org/news/2024-04-frozen-chunk-genome-rewrites-bird.html

A region of suppressed recombination misleads neoavian #phylogenomics https://www.pnas.org/doi/10.1073/pnas.2319506121

"This section, just 2% of the bird #genome, convinced #scientists that most #birds could be grouped into two major categories, with #flamingos and #doves as evolutionary cousins. The more accurate family tree identifies four main groups and identifies flamingos and doves as more distantly related."

azurecerulean@diasp.org

#Idiocracy - 02/03 is the date it takes place

The plot follows U.S. Army #librarian Joe Bauers, who wakes up five hundred years in the future after a botched government #hibernation experiment to find himself in a #dystopian #society run by #corporations, where #evolution has made #humanity #stupid because the benefits of #technology made it unnecessary for people to be #intelligent
and physically fit to survive

https://en.wikipedia.org/wiki/Idiocracy

#movie #today

waynerad@diasp.org

"Attention deficits linked with proclivity to explore while foraging".

"Our findings suggest that ADHD attributes may confer foraging advantages in some environments and invite the possibility that this condition may reflect an adaptation favouring exploration over exploitation."

I first encountered the "exploration over exploitation" in the context of reinforcement learning in computer science. The basic idea is, should you go to your favorite restaurant, or a restaurant you've never been to before? If you're in a new city where you've been to few restaurants, you should probably go to a new one. If you're in a city where you've lived for 10 years, and have been to most restaurants, maybe just go to the favorite. Where is the crossover point in between? You get the idea. Do you "exploit" the knowledge you have already, or do you "explore" to obtain more knowledge?

For the simplest cases, mathematicians have come up with formulas, and for complex cases, computer scientists have run simulations. In reinforcement learning, algorithms often have a tunable "hyperparameter" that can be used to increase the "exploration". Some problems require more "exploration" than others.

It appears the process of evolution may have evolved a variety of personalities to prioritize "exploration" or "exploitation".

Attention deficits linked with proclivity to explore while foraging

#discoveries #psychology #evolution