Animals capable of moving in different environments might face conflicting selection on
morphology, thus posing trade-offs on the relationships between morphology and locomotor …

Background Indian eagle owl known to rotate their necks up to 270 degrees in either
direction without injuring their vessels running below the head thereby without cutting off …

The natural history of birds is summarized. Account of what contemporary birds are, when
and how they came to be what they are, and why and how they evolved exceptional …

The avian skeleton and skeletal muscles have been modified by natural selection over
millions of years to meet the demands of flight. Some birds have lost the ability to fly and …

Annakacygna hajimei is an extinct flightless bird described from the marine Miocene (11.5
Ma) of Annaka, Gunma, Japan. Totally 17 prepelvic vertebrae, 12 cervical and 5 free …

Enabling robots to autonomously operate in sparse vertical structures will have a profound
impact on the way we conduct inspection and maintenance of civil and space infrastructure …

The climate and the environment determine the ecological context in which organisms live,
at global and local scale respectively. The first refers to the physical characteristics of the …

Many waterfowl have been observed whiffling in order to rapidly descend. Whiffling
accomplishes this by taking advantage of the nature of feathers to quickly lose altitude at a …

Phylogenetic comparative methods are essential in studying the evolution of traits across a
phylogeny. Felsenstein's phylogenetic independent contrast (PIC) method and the …

Ein charakteristisches Konstruktionsmerkmal der Wirbeltiere ist die Wirbelsäule. Zu ihren
wichtigsten Funktionen zählt der Schutz des empfindlichen und lebenswichtigen …