Flight behaviours of birds have been extensively studied from different angles such as their kinematics, aerodynamics and, more generally, their migration patterns. Nevertheless, much is still unknown about the daily foraging flight activity and behaviour of breeding birds, and potential differences...
Given that the femur torsion during terrestrial locomotion in birds is associated with changes in hindlimb posture due to their adaptation to flight, the characteristics of M. iliotrochantericus caudalis may provide insight into the locomotor evolution of theropods and the origin of avian flight. ...
38 birds 39 year 40 water 【阅读】 READING PASSAGE 1 You should spend about 20 minutes on Questions 1-13, which are based on Reading Passage 1 below. Bondi Beach A Bondi Beach, Australia’s most famous beach, is located in the suburb of Bondi, in the Local Government Area of Waverie...
For flying insects, stability is essential to maintain the orientation and direction of motion in flight. Flight instability is caused by a variety of factors, such as intended abrupt flight manoeuvres and unwanted environmental disturbances. Although wi
(we here meet the specialised area in insect eyes that Land also described inEyes to See), or the migrations of the monarch butterfly (see alsoChasing Monarchs). Many other mechanisms and behaviours will be unfamiliar even to most biologists and Barrie mines the primary literature for some ...
The black soldier fly (BSF) Hermetia illucens (Diptera: Stratiomyidae) plays a significant role at the larval stage in the circular economy due to its ability to convert organic waste into valuable products for energy, food, feed, and agricultural applic
Starlings and sparrows did enter the enclosed areas where cows resided – using the advantage of flight to avoid manure-covered surfaces – and could often be found near concentrate feed boxes or around water troughs. These birds appeared to have picked the cow shed as their residence because ...
Endothermy Birds Mammals Triassic Archosauria Synapsida 1. Introduction There are several candidates for pivotal events in vertebrate evolution, and cases have been made for the importance of the origin of tetrapods in the Devonian and the origin of bird flight in the Jurassic. To many physiologists...
We show that our theory can symmetrically and mechanistically link together characteristic features of the insect flight behaviours (responses) to known flow features in the stable boundary layer as well as the convective boundary layer. Method and Observational Results The data used in this study ...
Behavioural modulation of motivational aspects of brain function may yield new insight as to how and why evolutionary adaptation has connected behaviours that were previously unrelated. Pre-sexual selection is one of the primary forces that drive the evolution of extravagant phenotypic traits in males....