Figure 16 pictures a three-headed reptilian bird chasing a hunter who is armed with a gun.
In proportion to body size, mammals have brains about ten times the size of reptilian brains.
Let us consider first the simpler explanation of a series of morphological evolutionary changes in the evolution of avian feathers from reptilian scales.
Vertebrate animals (mammals, birds, theropod dinosaurs) develop larger brains then their earlier reptilian ancestors.
At our study site, the predator guild includes avian, mammalian, and reptilian species.
Like all reflexes, the startle reflects activity of the brain stem, the most primitive, reptilian part of the brain.
At the time, paleontologists were stuck in a reptilian perspective on dinosaurs.
The reptilian scale has absolutely nothing to do with follicles.
Dehydration can cause serious health problems in any reptilian species.
Two of the bones found in the reptilian jaw are nearly identical to two of the bones in the mammalian inner ear.