Resultado de búsqueda
Hace 2 días · Neornithes Gadow, 1883. Birds are a group of warm-blooded vertebrates constituting the class Aves ( / ˈeɪviːz / ), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.
Hace 3 días · Palaeontologists have now discovered the creature, often known as the “parrot lizard”, had reptile-like skin in areas of the body without feathers. They said the findings, published in the...
Hace 2 días · Softer bird-style skin would have been too fragile without feathers for protection. Collectively, the new fossil evidence indicates that Psittacosaurus had reptile-style skin in areas where it ...
Hace 3 días · As frigatebird chicks are born without feathers to protect them from the cold, they spend around two weeks being raised by their parents, by which time their white down will have grown in. They are fed often during the day, but as they become older, their feeding schedule will reduce to once every two days.
Hace 2 días · Palaeontologists have now discovered the creature had reptile-like skin in areas of the body without feathers. Their findings, published in the journal Nature Communications, also revealed the dinosaur skin fossil they analysed was composed of silica, the same compound used to make glass.
Hace 3 días · Softer bird-style skin would have been too fragile without feathers for protection. Collectively, the new fossil evidence indicates that Psittacosaurus had reptile-style skin in areas where it...
Hace 2 días · Softer bird-style skin would have been too fragile without feathers for protection. Collectively, the new fossil evidence indicates that Psittacosaurus had reptile-style skin in areas where it didn't have feathers.
