They are its legs, however they are heavily modified legs made for strongly grappling prey
Le site est propre, par contre il manque l'option d'ajouter un animal je crois (usage certes circonstanciel mais personnellement nécessaire).
I am European and heavily against punitive justice. But I think one year of prison for a crime almost universally considered among the worst is not enough for rehabilitation, and I find this opinion validated by the lack of understanding or even remorse shown by the guy in public statements
He did barely a year of prison... I personally don't quite think it's enough for raping a kid, but hey that's just my opinion
Bonjour, C'est une mauvaise lecture, heureusement 70% des espèces n'ont pas disparu, les populations pour beaucoup d'espèces ont chutés de 70%, ce qui est déjà largement assez dramatique, avec effectivement beaucoup de conséquences comme les zoonoses (passages de virus de la faune sauvage vers l'humain). Pour l'anecdote, 70% d'espèces véritablement éteintes, c'est l'estimation pour la crise crétacé-tertiaire s'il y a 66 millions d'années, avec son combo météorite-volcanisme-changement climatique !
Continuing a deep rock galactic addiction, and used the sales to start sea of thieves with some mates, having a blast for the moment!
Trop cool ! Dans les JDR light, j'ai beaucoup aimé For the queen (Pour la Reine en VF) qui fonctionne plutôt bien avec des enfants, le côté on raconte une histoire comme on veut c'est vraiment chouette
Voyage dans le temps pour enfants je pense direct à la cabane magique, mais la fusée ne colle pas... J'irai regarder dans mes cartons de gamins si je trouve quelque chose !
I don't agree but I like the meme, upvoted!
The diapsid part is very likely indeed, as fossil skulls of early stem turtles do show some temporal openings ( https://www.annualreviews.org/content/journals/10.1146/annurev-ecolsys-110218-024746 ) The point is more where do they nest within Diapsida, more closely to the Lepidosauromorpha, or to the Archosauromorpha, and where precisely if within one of those clades. The point is that can't quite be proven using only extant species, whether by DNA or morphological evidence. And concerning ML, the methodology is often criticised, not because it's bad, but because it's opaque and thus it is difficult to justify and understand as a process
In phylogeny, genomic is just another tool. The point is that turtles are os course animals, but they do branch off of different reptile groups if you look at morphological evidence (which includes fossil data) or at molecular (genetic) evidence (which only includes extant species). This is not something frequent, as usually molecular evidence tends to strengthen previous morphologically established evolutionary relationships. And even though molecularists are more numerous today, their methods are neither better or worse than anatomy.
Phylogeny is not as straightforward as some people make it seem, and especially molecular phylogeny tends to rely on abstract concepts that can't always be backed up by biological evidence (I'm not saying it's wrong, it's very often very good, juste that a lot of people doing it do not understand the way it works, and thus can't examine the process critically).
And so turtles' origin are still very much an active debate!
Sarcosuchus was one of the largest crocodylomorph to ever live, around 110 million years ago. This incredible specimen is exposed in Paris, at the Muséum national d'Histoire naturelle, in the Paleontology gallery. Some bones are artificial and can be recognized by the uniform grey color (like most of the limbs), but a lot of other are directly from the specimen, like almost all of the skull ! Picture from Wikipedia, by Shadowgate from Novara, ITALY
As others have stated, water in trees gets up thanks to two processes. The first is indeed capillary action. The tubes carrying the water are rather thin, and it clings to the sides of it. But this is a rather small part of the total energy carrying the water. The main mechanism is a negative pressure inside the vascular system of the tree. Basically, tree leaves sweat water all the time (more or less depending on temperature). The water leaving the tree kind of sucks up the water following inside the vessels (this is a simplification to not go into the physics behind). In some larger trees, the negative pressure inside the vascular system can be exceptionally strong, requiring exceptional strength of the tree's components.