Results 131 to 140 of about 171,357 (365)
The Anatomical Record, EarlyView.Abstract The pygmy sperm whale (Kogia breviceps) possesses an exocrine gland associated with its false gill slit pigmentation pattern. The cervical gill slit gland is a compound tubuloalveolar gland that produces a holocrine secretion and displays maturational changes in size and secretory histology. While the morphology of the cervical gill slit gland
Tiffany F. Keenan +13 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract Neuroanatomy studies in vertebrates have garnered significant attention in recent years, particularly driven by advancements in computerized tomography imaging techniques. Nonetheless, these advancements remain largely constrained to specific vertebrate groups, notably mammals, birds, and fish, leaving studies in reptiles at an incipient stage.
Giordanna Issa Lucas, Angele Martins
wiley +1 more source
Revista Brasileira de Parasitologia VeterináriaFecal samples from 56 snakes at the Vital Brazil Institute, in the city of Niterói, Rio de Janeiro, were tested using the sedimentation and flotation techniques to investigate the evolutionary forms of parasites such as helminths and protozoa, and using ...
Janaína Lima de Souza +9 more
doaj +1 more source
Globally centered discrete snakes [PDF]
arXiv, 2006 We consider branching random walks built on Galton-Watson trees with offspring distribution having a bounded support, conditioned to have $n$ nodes, and their rescaled convergences to the Brownian snake. We exhibit a notion of "globally centered discrete snake'' that extends the usual settings in which the displacements are supposed centered.
arxiv
Nature Communications, 2015 The previous oldest known fossil snakes date from ~100 million year old sediments (Upper Cretaceous) and are both morphologically and phylogenetically diverse, indicating that snakes underwent a much earlier origin and adaptive radiation.
M. Caldwell +3 more
semanticscholar +1 more source
Snake and Moon ‘Right Way Marriage’ Stories on Stone and Bark
Archaeology in Oceania, EarlyView.ABSTRACT In northwest Australia, boab trees hold significant cultural values for First Nations people. Their leaves, bark, roots and nuts are important as traditional resources for food, medicine, fibre, water and shade and serve as reference points in the landscape. Some of the tree trunks are inscribed with images and symbols which tell of events and
Jane Balme +7 more
wiley +1 more source
Transactions of the American Fisheries Society, Volume 151, Issue 6, Page 695-710, November 2022., 2022 Abstract Objective Speckled Dace Rhinichthys osculus is small cyprinoid fish that is widespread in western North America. In California and elsewhere it is currently treated as a single species with multiple subspecies, many undescribed. However, these subspecies may represent evolutionary lineages that are cryptic species because they cannot be ...
Yingxin Su +6 more
wiley +1 more source