Results 21 to 30 of about 133,348 (293)
Birds can be classified into altricial and precocial species. The hatchlings of altricial birds cannot stand, whereas precocial birds can walk and run soon after hatching.
Qifan Wu +10 more
doaj +1 more source
Seahorses are valuable species for their use in traditional Chinese medicine, as well as for the aquarium trade as ornamentals and curiosities. To balance market demand and reduce pressure on wild populations, many countries have undertaken commercial ...
Xuehui Shi +6 more
doaj +1 more source
Prevalence, Distribution, and Concomitance of Whole-Spine Ossification of the Posterior Longitudinal Ligament and Ossification of the Ligament Flavum in South Koreans: A Whole-Spine-CT-Based Cross-Sectional Study [PDF]
Objective No studies assessing the prevalence of ossification of the spinal ligament were conducted using whole-spine positron emission tomography and computed tomography (PET-CT) in healthy Koreans.
Yun Hee Choi +2 more
doaj +1 more source
Heterotopic mesenteric ossification: a report of two cases [PDF]
Heterotopic mesenteric ossification (HMO) is abnormal bone formation in tissues which usually do not undergo ossification. There are approximately 75 cases reported worldwide. We present two cases of HMO.
Hisham F. Bahmad +7 more
doaj +1 more source
Comparative developmental osteology of the seahorse skeleton reveals heterochrony amongst Hippocampus sp. and progressive caudal fin loss [PDF]
Background: Seahorses are well known for their highly derived head shape, prehensile tail and armoured body. They belong to the family of teleosts known as Syngnathidae, which also includes the pipefishes, pipehorses and seadragons. Very few studies have
Adriaens, Dominique +1 more
core +2 more sources
The development of the skull of the Egyptian cobra Naja h. haje (Squamata: Serpentes: Elapidae) [PDF]
Background: The study of craniofacial development is important in understanding the ontogenetic processes behind morphological diversity. A complete morphological description of the embryonic skull development of the Egyptian cobra, Naja h.
Evans, SE, Khannoon, ER
core +2 more sources
Ontogeny of the osteocranium in the African catfish, Clarias gariepinus burchell (1822) (Siluriformes: Clariidae): Ossification sequence as a response to functional demands [PDF]
A
Adriaens, Dominique, Verraes, Walter
core +2 more sources
Objective We aimed to elucidate the ossification process of the otic capsule in postnatal C57BL/6 mice and depict the three‐dimensional (3D) process of otoconial mineralization in vivo. Methods The otic capsules of C57BL/6 mice were stained with alizarin
Jing Bai +7 more
doaj +1 more source
Heterotopic ossification (HO) is a well-known complication following total hip arthroplasty (THA), with an average incidence of 30%. Patients are classified according to Brooker’s staging system.
Tomás Osório +4 more
doaj +1 more source
Objective: The aim of this study was to investigate the normal changes that occur at the distal femoral epiphysis of rats and determine whether recurrent bouts of malaria altered them in anyway.
Ato Ampomah Brown +3 more
doaj +1 more source

