Results 81 to 90 of about 478,950 (292)

Aquatic Mammals

open access: yes
Abstract Marine mammals include species that depend on the ocean for all or part of their life needs: mysticetes (baleen whales), odontocetes (toothed whales, dolphins, and porpoises), pinnipeds (seals, sea lions, fur seals, and walruses), sirenians (manatees and dugongs), and the marine carnivores (sea otters and
Kathleen Dudzinski   +7 more
openaire   +1 more source

Morbilliviruses in aquatic mammals: report on round table discussion [PDF]

open access: yesVeterinary Microbiology, 1995
A workshop was organised to ascertain the current situation with regard to morbillivirus infections in aquatic animals. The great interest generated by the discovery of these new virus infections in 1988 has to some extent abated but much high quality research has continued in this field as the workshop showed.
BARRETT T   +7 more
openaire   +3 more sources

Acoustic Characteristics of Bubblestream-Associated Whistles Produced by Atlantic Bottlenose Dolphins (Tursiops truncatus) During the First Thirty Days of Life

open access: yes, 2021
Bottlenose dolphins (Tursiops truncatus) have been observed to produce whistles coincident with bub-blestream emissions from the blowhole. Use of bub-blestreams concurrent with whistles by calves could function for vocalizer recognition prior to the ...
Eskelinen, Holli C.   +3 more
core   +1 more source

Are there morpho‐acoustic patterns of adaptation in nonhuman primate ears? Testing the role of ecology and habitat in shaping ear morphology and function

open access: yesThe Anatomical Record, EarlyView.
Abstract Analysis of the variation in the bony structures of the inner and middle ear provides critical insights into functional morphology, as well as adaptive morphology across primates. In this study, we investigated whether ear morphology patterns are related to the ecological characteristics of species and their habitats to test two acoustic ...
Myriam Marsot   +4 more
wiley   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

open access: yesThe Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

Olfaction at depth: Cribriform plate size declines with dive depth and duration in aquatic arctoid carnivorans

open access: yesEcology and Evolution, 2020
It is widely accepted that obligate aquatic mammals, specifically toothed whales, rely relatively little on olfaction. There is less agreement about the importance of smell among aquatic mammals with residual ties to land, such as pinnipeds and sea ...
Deborah J. Bird   +3 more
doaj   +1 more source

Skeletal pathologies in extant crocodilians as a window into the paleopathology of fossil archosaurs

open access: yesThe Anatomical Record, EarlyView.
Abstract Crocodilians, together with birds, are the only extant relatives to many extinct archosaur groups, making them highly important for interpreting paleopathological conditions in a phylogenetic disease bracketing model. Despite this, comprehensive data on osteopathologies in crocodilians remain scarce.
Alexis Cornille   +6 more
wiley   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto   +3 more
wiley   +1 more source

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

open access: yesThe Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano   +3 more
wiley   +1 more source

Identification of alimentary components of Antillean manatee diet in the Northeast of Brazil [PDF]

open access: yesBiotemas, 2008
The manatees are considered to be opportunist herbivors, consuming a great amount of alimentary items. The aim of the present study was to identify the alimentary components of the diet of Antillean manatees in free life in the northeastern region of ...
Daiane Garcia Anzolin   +3 more
doaj  

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