Background The origin of powered avian flight was a locomotor innovation that expanded
the ecological potential of maniraptoran dinosaurs, leading to remarkable variation in …

In 1976 John Ostrom published an enlightening paper about the anatomical transformations
in the shoulder girdle and forelimb elements along the origin of birds. Most of his ideas were …

Abstract The Greater Rhea (Rhea americana, Rheidae) is a flightless paleognath with a
wide geographical distribution in South America. The morphology of its shoulder girdle and …

The American barn owl is a nocturnal bird of prey in which hind limb movements are a key
factor in obtaining food; however, the architectural properties of its hind limb muscles have …

Caracaras, falcons and forest falcons, which are representative of the three subfamilies of
the family Falconidae, have different flight behaviour. Since, during flight, the tail works in …

Abstract Barn Owls (Tytonidae) are nocturnal raptors with the largest geographical
distribution among Strigiformes. Several osteological, morphometrical, and biomechanical …

The family Falconidae has contrasting behaviors on its flight within the subfamilies. Falcons
are primarily aerial predators requiring accuracy, high speed, and controlled movements …

Face-selective neurons were discovered in the inferior temporal visual cortex by Perrett et
al.(1982), in the amygdala by Sanghera, Rolls, and Roper-Hall (Sanghera et al. 1979; Rolls …

La histología ósea permite dilucidar diferentes aspectos sobre la biología de los
vertebrados, incluyendo tasas y dinámica de crecimiento, longevidad y la relación con los …