Results 31 to 40 of about 616 (169)
Identification of alimentary components of Antillean manatee diet in the Northeast of Brazil [PDF]
Biotemas, 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
A New Miocene Sirenian from Kutch, India [PDF]
Acta Palaeontologica Polonica, 2009 We report a new Miocene sirenian from District Kutch, State of Gujarat, India: Domingia sodhae gen. et sp. nov. The new species is a dugongine dugongid with flattened tusk-like upper incisors. Like some other Miocene dugongids, Domningia is large and has complex, bilophodont molars and three-rooted premolars, which are strongly worn.
Thewissen, J.G.M., Bajpai, Sunil
openaire +2 more sources
Anthracobunids from the middle eocene of India and pakistan are stem perissodactyls. [PDF]
PLoS ONE, 2014 Anthracobunidae is an Eocene family of large mammals from south Asia that is commonly considered to be part of the radiation that gave rise to elephants (proboscideans) and sea cows (sirenians).
Lisa Noelle Cooper +6 more
doaj +1 more source
Frontiers in Ecology and Evolution, 2023 Although there is growing concern about ingestion of microplastics by marine organisms, little research has been conducted on marine herbivores. This is the first study to document microplastic ingestion within the family Sirenia.
Shannon Gowans, Amy N. S. Siuda
doaj +1 more source
SIRENIA FOSSILS FROM QOM FORMATION (BURDIGALIAN) OF THE KABUDAR AHANG AREA, NORTHWEST IRAN
Rivista Italiana di Paleontologia e Stratigrafia, 2016 Fossil remains of sirenians (Mammalia; Dugongidae) are reported from the late early Miocene (Burdigalian) Qom Formation near the town of Shirin Su, northwest Kabudar Ahang region, west of Tehran, Iran. The fossils consist of partial postcranial skeletons
NASROLLAH ABBASSI +3 more
doaj +1 more source
Blubber Thickening Driven by UCP1 Inactivation: Insights from a Cetacean‐Like Transgenic Mouse Model
Integrative Zoology, EarlyView.UCP1 inactivation of cetaceans in mice drives BAT whitening and iWAT hyperplasia, promoting fat accumulation for aquatic adaptation. Abstract Cetaceans possess thick blubber, a specialized adipose tissue essential for thermal insulation, a streamlined body form, energy storage, and buoyancy. However, the mechanisms that underpin this adaptation are not
Qian Zhang +5 more
wiley +1 more source
Comparative Genomics and Functional Evidence for Convergent Adaptation to Hypoxia in Mammals
Integrative Zoology, EarlyView.This study reveals convergent selection in mammals adapted to hypoxia. Functional assays demonstrate that amino acid mutations reduce oxidative stress, attenuate hypoxia‐induced injury, and modulate the hypoxia‐inducible transcription factor (HIF)‐driven hypoxic response.
Hao Dong +5 more
wiley +1 more source
Evolutionary Mechanisms of Coagulation Factors in Cetaceans During Aquatic Adaptation
Integrative Zoology, EarlyView.Compared with Bos taurus, T. truncatus showed shorter prothrombin time and thrombin time but prolonged activated partial thromboplastin time, indicating pathway‐specific remodeling of coagulation. Evolutionary analyses identified 18 positively selected genes and accelerated F11 evolution, while functional assays revealed increased coagulation factor ...
Wenjun Lv +4 more
wiley +1 more source
Caldasia, 2018 Observations on the epizoic interaction between diatoms and marine mammals have been conducted mostly in cetaceans and are scarce in sirenians. By scraping the skin surface, the samples of biofilm were collected of a captive male Caribbean manatee in ...
Marco Violante-Huerta +2 more
doaj +1 more source
Animals, 2022 Marine mammals play a critical ecological role as both predator and prey. They are divided into three groups that share similar adaptations to their aquatic life, but that have very different origins and life patterns: sirenians, pinnipeds, cetaceans ...
Rosario Martín-Orti +7 more
doaj +1 more source