@sallyforthe Animals have genes they don't use. All birds have genes that code for the formation of teeth but those genes are inhibited, this is evidence that birds evolved form ancestors with teeth. If they were created as they are they just wouldn't have
Researchers at the University of California, Riverside used a database of genome sequences of 48 species of birds representatives for every order of bird. They found that all 48 species had deactivated genes for teeth formation. https://t.co/iuEMLd1DeM
Pero conseguir que un embrión de pollo desarrolle estructuras que deriven en dientes no lo es todo. Los dientes están cubiertos por esmalte y dentina y esos genes están inactivados en aves, como lo están en otros animales desdentados como tortugas https:/
Genes critical for enamel formation are inactivated in enamelless aardvarks (and sloths and armadillos) https://t.co/KPgNEqRj4e #MMM2019
@Mehdiums @darwinogouldien @mizzati21 @ackryl @creapills Ah, pourtant à la 2ème ligne on a un lien vers la source 😂 : https://t.co/327MkEM6uQ
Birds do not have teeth. Why? http://t.co/L5G5ZOKWcp
Birds lost teeth to make head lighter for flight; all tooth birds in #birdfamilytree now long extinct http://t.co/QDjx5bLllL
#birdfamilytree Single loss tooth genes in birds; multiple losses in mammals. Nature repeats http://t.co/QDjx5bLllL http://t.co/RRky6ySlZH
#birdfamilytree Loss of dentine & enamel tooth genes in birds allowed keratin genes to be resculpted into beak genes. http://t.co/QDjx5bLllL
Tooth genes in #birdfamilytree still undergoing molecular decay as we speak. http://t.co/QDjx5bLllL
#birdfamilytree Bird tooth gene loss similar to loss in turtles & some mammals (baleen whale) http://t.co/QDjx5bLllL http://t.co/6xHHkz5KAE
#birdfamilytree Bird tooth gene loss similar to loss in turtles & some mammals (baleen whale) http://t.co/QDjx5bLllL http://t.co/6xHHkz5KAE
Puede que las aves perdieran los dientes en un único evento hace 116 Mda. http://t.co/mwbOYOVzvQ (o quizá sólo el esmalte)
#birdfamilytree Debate solved! Not 3, but single loss of teeth in birds 116 million years ago http://t.co/QDjx5bLllL http://t.co/IzUGFb0ZAa
#birdfamilytree Debate solved! Not 3, but single loss of teeth in birds 116 million years ago http://t.co/QDjx5bLllL http://t.co/IzUGFb0ZAa
#birdfamilytree Bird tooth gene loss similar to loss in turtles & some mammals (baleen whale) http://t.co/QDjx5bLllL http://t.co/6xHHkz5KAE
#birdfamilytree Bird tooth gene loss similar to loss in turtles & some mammals (baleen whale) http://t.co/QDjx5bLllL http://t.co/6xHHkz5KAE
#birdfamilytree Single loss tooth genes in birds; multiple losses in mammals. Nature repeats http://t.co/QDjx5bLllL http://t.co/RRky6ySlZH
Tooth loss gene study in #birdfamilytree conducted by scientist Meredith, Springer, Gilbert @erichjarvis @BGI_Events http://t.co/vvSioK1P7D
#birdfamilytree Debate solved! Not 3, but single loss of teeth in birds 116 million years ago http://t.co/QDjx5bLllL http://t.co/IzUGFb0ZAa
#birdfamilytree Debate solved! Not 3, but single loss of teeth in birds 116 million years ago http://t.co/QDjx5bLllL http://t.co/IzUGFb0ZAa
#birdfamilytree Debate solved! Not 3, but single loss of teeth in birds 116 million years ago http://t.co/QDjx5bLllL http://t.co/IzUGFb0ZAa
#birdfamilytree Debate solved! Not 3, but single loss of teeth in birds 116 million years ago http://t.co/QDjx5bLllL http://t.co/IzUGFb0ZAa
The old birds (ostrich & tinamou) have less molecular decay of tooth genes, closer to common #birdfamilytree ancestor http://t.co/QDjx5bLllL
Birds lost teeth to make head lighter for flight; all tooth birds in #birdfamilytree now long extinct http://t.co/QDjx5bLllL
#birdfamilytree Bird tooth gene loss similar to loss in turtles & some mammals (baleen whale) http://t.co/QDjx5bLllL http://t.co/6xHHkz5KAE
#birdfamilytree Single loss tooth genes in birds; multiple losses in mammals. Nature repeats http://t.co/QDjx5bLllL http://t.co/RRky6ySlZH
#birdfamilytree Debate solved! Not 3, but single loss of teeth in birds 116 million years ago http://t.co/QDjx5bLllL http://t.co/IzUGFb0ZAa
Tooth genes in #birdfamilytree still undergoing molecular decay as we speak. http://t.co/QDjx5bLllL
#birdfamilytree Loss of dentine & enamel tooth genes in birds allowed keratin genes to be resculpted into beak genes. http://t.co/QDjx5bLllL
#birdfamilytree Single loss tooth genes in birds; multiple losses in mammals. Nature repeats http://t.co/QDjx5bLllL http://t.co/RRky6ySlZH
Birds lost teeth to make head lighter for flight; all tooth birds in #birdfamilytree now long extinct http://t.co/QDjx5bLllL
#birdfamilytree Bird tooth gene loss similar to loss in turtles & some mammals (baleen whale) http://t.co/QDjx5bLllL http://t.co/6xHHkz5KAE
#birdfamilytree 1dentin (inner) & 5 enamel (outer) tooth genes were inactivated beg ~116 MYA in common bird ancestor http://t.co/QDjx5bLllL
#birdfamilytree 1dentin (inner) & 5 enamel (outer) tooth genes were inactivated beg ~116 MYA in common bird ancestor http://t.co/QDjx5bLllL
Birds lost teeth to make head lighter for flight; all tooth birds in #birdfamilytree now long extinct http://t.co/QDjx5bLllL
#birdfamilytree Debate solved! Not 3, but single loss of teeth in birds 116 million years ago http://t.co/QDjx5bLllL http://t.co/IzUGFb0ZAa
#birdfamilytree Tomorrow, Dec 22 2014 I will tweet highlights on the gene study of how & when birds lost their teeth http://t.co/QDjx5bLllL
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Что было первым - современные птицы или клювы? http://t.co/q0ULaysOpe #FREE
[special issue research article] evidence for a single loss of mineralized teeth in the common av... http://t.co/hjByLJtUsJ
Evidence for a single loss of mineralized teeth in a common avian ancestor. Science, 2014; 346 (6215): http://t.co/JROH3TuHCP
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
RT sciencemagazine: Which came first--modern birds or beaks? http://t.co/XOLYD5Erol #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Science Magazine sciencemagazine : Which came first--modern birds or beaks? http://t.co/mVkwGVjLDm #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Which came first--modern birds or beaks? http://t.co/rolDn453NS #FREE
Genomic evidence for a single tooth loss event in archosaurs - what about Dasypeltis, Emydocephalus? http://t.co/Eo6MXSa4Jw @TetZoo
Genomic evidence for a single tooth loss event in archosaurs - what about Dasypeltis, Emydocephalus? http://t.co/Eo6MXSa4Jw @TetZoo
Genomic evidence for a single tooth loss event in archosaurs - what about Dasypeltis, Emydocephalus? http://t.co/Eo6MXSa4Jw @TetZoo
Genomic evidence for a single tooth loss event in archosaurs - what about Dasypeltis, Emydocephalus? http://t.co/Eo6MXSa4Jw @TetZoo
Genomic evidence for a single tooth loss event in archosaurs - what about Dasypeltis, Emydocephalus? http://t.co/Eo6MXSa4Jw @TetZoo
tooth loss and beak development evolved together in the common ancestor of all modern birds http://t.co/fSL6ct9fgz
How and when birds lost their teeth. http://t.co/FXpdEyVvlr #openaccess
How and when birds lost their teeth. http://t.co/FXpdEyVvlr #openaccess
Evidence for a single loss of mineralized teeth in the common avian ancestor HT @naomiattar http://t.co/THfrAmEWsa
Evidence for a single loss of mineralized teeth in the common avian ancestor HT @naomiattar http://t.co/THfrAmEWsa
Once-upon-a-time, hen's teeth were a thing. But then birds became toothless, and here's how http://t.co/nwUy0CfCO8
Linnut siis menettivät hampaansa 116 miljoonaa vuotta sitten. Ihmeellisintä on se, miten asia selvitettiin: http://t.co/b9fKlZrM2o
そーか鳥が歯を失ったのは共有祖先で一回か。 Evidence for a single loss ofmineralized teeth in the common avian ancestor http://t.co/UqzwkrPHo8
Bird tooth loss http://t.co/9kw5lvnARk
Bird tooth loss http://t.co/9kw5lvnARk