Results 1 to 10 of about 3,916 (208)

A new diminutive fossil ziphiid from the deep-sea floor off northern Chile and some remarks on the body size evolution and palaeobiogeography of the beaked whales [PDF]

open access: yesActa Palaeontologica Polonica, 2023
The evolutionary history of the beaked whales (Ziphiidae), odontocetes nowadays adapted to deep diving, is well known thanks to a significant fossil record mainly from the deep ocean floors.
Giovanni Bianucci   +3 more
doaj   +1 more source

Bycatch of marine mammals in the Northwest Atlantic during commercial fishery (based on literature materials and observations by the Polar branch of VNIRO in 2013–2020)

open access: yesVestnik MGTU, 2022
This paper describes one of the most acute problem for both environmental companies and fisheries – bycatch of marine mammals caused by bioresource exploitation in the Northwest Atlantic (NWA).
Mishin T. V.
doaj   +1 more source

Life History Traits of Sperm Whales Physeter macrocephalus Linnaeus, 1758 Stranded along Italian Coasts (Cetartiodactyla: Physeteridae)

open access: yesAnimals, 2022
We investigated the relationship between age and body length, and age at sexual maturity of Physeter macrocephalus individuals stranded along the Italian coast.
Nicola Maio   +17 more
doaj   +1 more source

PERCEPÇÃO DE ALUNOS DE GRADUAÇÃO SOBRE ECOLOGIA E CONSERVAÇÃO DE CETÁCEOS, FORTALEZA-CE

open access: yesHolos, 2021
Cetáceos são mamíferos aquáticos que habitam boa parte do globo, e que tornaram-se ameaçadas devido a ações como caças ilegais, poluição e turismo. Com isso, objetivou-se avaliar a percepção de alunos de graduação sobre Ecologia e Conservação de Cetáceos.
Marcos Adelino Almeida Filho   +4 more
doaj   +1 more source

Are Dolphins Kept in Impoverished Environments?

open access: yesAnimals, 2023
Numerous studies have demonstrated the negative effects of impoverished environments versus the positive effects of enriched environments on animals’ cognitive and neural functioning.
Kelly Jaakkola
doaj   +1 more source

The dopamine receptor D5 gene shows signs of independent erosion in toothed and baleen whales [PDF]

open access: yesPeerJ, 2019
To compare gene loci considering a phylogenetic framework is a promising approach to uncover the genetic basis of human diseases. Imbalance of dopaminergic systems is suspected to underlie some emerging neurological disorders. The physiological functions
Luís Q. Alves   +4 more
doaj   +2 more sources

Diving on damage—the muscle transcriptome of parasitic infested harbor porpoises (Phocoena phocoena) hints at oxidative stress but not hypoxia

open access: yesFrontiers in Marine Science, 2023
The only native cetacean in German waters, the harbor porpoise (Phocoena phocoena), is impacted by numerous pathological lesions in the respiratory tract mainly caused by parasites or bacteria.
Eda Merve Dönmez   +3 more
doaj   +1 more source

Borealodon osedax, a new stem mysticete (Mammalia, Cetacea) from the Oligocene of Washington State and its implications for fossil whale-fall communities [PDF]

open access: yesRoyal Society Open Science, 2019
Baleen whales (mysticetes) lack teeth as adults and instead filter feed using keratinous baleen plates. They do not echolocate with ultrasonic frequencies like toothed whales but are instead known for infrasonic acoustics.
B. K. Shipps   +2 more
doaj   +1 more source

Diversity and Consequences of Social Network Structure in Toothed Whales

open access: yesFrontiers in Marine Science, 2021
Toothed whales (suborder Odontoceti) are highly social, large brained mammals with diverse social systems. In recent decades, a large body of work has begun investigating these dynamic, complex societies using a common set of analytical tools: social ...
Michael N. Weiss   +3 more
doaj   +1 more source

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