@LibertyPatriot8 Claro, un animal más pequeño y sacos de aire más pequeños. Aquí un animal mucho más grande, y sacos de aire muchísimo más grandes también. Aquí te dejo la descripción de los sacos de aire generales de un pterosaurio por si te interesa: htt
@jethroreading32 @DeepTimeFossils Pterosaurs had a lung-air sac system like birds. Atmosphere was not particularly high in oxygen (less of it than today, actually). https://t.co/beeekp2GiG
@AltBirdSounds @NightmareWaffle @king_tyranno @Extinct_AnimaIs It's long been established that pterosaurs had bones with pockets of air in them, much like birds. It's mentioned as commonly known knowledge in scientific papers, it's that well established. h
#PLOSONE: Respiratory Evolution Facilitated the Origin of Pterosaur Flight and Aerial Gigantism https://t.co/cFjxZp5iAC 肋の鈎状突起によって胴を固めて「ふいご」にする羽ばたき連動呼吸構造は一見トリ似だけれども子細な気嚢の配置は実はトリと全然違うのよ(生き物あるある
Respiratory Evolution Facilitated the Origin of Pterosaur Flight and Aerial Gigantism http://t.co/dOSmoXo5UE
@photar http://t.co/XV6dxJ01 far too much of their musculature and weight was devoted to their wings for them to be useless