#darwin

devevo@diasp.org

#biology #genetics #birds #beaks #darwin #DomesticPigeons #ROR2Gene #RobinowSyndrome

Researchers Solve Charles Darwin’s Short-Beak Enigma

Charles Darwin bred domestic pigeons (Columba livia), and in his Origin of Species described the numerous variations that had been selected by pigeon fanciers. He thought these birds held the secrets of selection in their beaks. Free from the bonds of natural selection, over 350 breeds have beaks of all shapes and sizes within a single species. The most striking are beaks so short that they sometimes prevent parents from feeding their own young. In a new study, biologists discovered that a mutation in the ROR2 gene is linked to beak size reduction domestic pigeons; surprisingly, mutations in this gene also underlie a human disorder called Robinow syndrome.

http://www.sci-news.com/genetics/charles-darwins-short-beak-enigma-10086.html

michelpatrice@diaspora-fr.org

Texas man who led anti-mask protests in name of ‘freedom’ dies of Covid-19

https://www.theguardian.com/us-news/2021/aug/29/texas-caleb-wallace-anti-mask-protests-freedom-dies-covid-19

« Jessica Wallace told the newspaper her husband began experiencing Covid symptoms on 26 July but refused to get tested or go to the hospital. He instead took high doses of Vitamin C, zinc aspirin and ivermectin, an anti-parasitic medicine used for livestock that officials have urged people not to take for Covid-19. »

#Hoax #Covid #Covid-19 #Mask #Anti-Mask #ivermectin #Darwin

opimedia@framasphere.org

🐒 "Avoir raison avec... Charles #Darwin" (France Culture, juillet 2021)
https://www.franceculture.fr/emissions/avoir-raison-avec/avoir-raison-avec-charles-darwin
5 × 30′ :
1. Charles Darwin dans son biotope
2. Charles Darwin : la lettre, l’esprit et les non-dits
3. Charles Darwin : l’aimant à idéologies
4. Darwin et la littérature : les noces rebelles
5. Quand l’humanité descend de Darwin

dredmorbius@joindiaspora.com

Darwin-Lotka energy law

The Darwin-Lotka energy law is a coinage of ecologist Howard T. Odum. It appears in his book Environment, Power, and Society, possibly elsewhere. In its brief form: the maximization of power for useful purposes is the criterion for natural selection.

Darwin's theory of evolution then becomes a general energy law....

Continued at the dreddit

#entropy #darwin #evolution #lotka #dissipativesystems #howardodum

http://www.reddit.com/r/dredmorbius/comments/2hz2lk/darwinlotka_energy_law/