Results 11 to 20 of about 11,568 (252)

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

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

No leading‐edge effect in North Atlantic harbor porpoises: Evolutionary and conservation implications

open access: yesEvolutionary Applications, 2021
Understanding species responses to past environmental changes can help forecast how they will cope with ongoing climate changes. Harbor porpoises are widely distributed in the North Atlantic and were deeply impacted by the Pleistocene changes with the ...
Yacine Ben Chehida   +6 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

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

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

Evolution of the Cetacea [PDF]

open access: yesNature, 1883
I AM glad to be able to assure Mr. Searles Wood that I have long been familiar with the specimen called Palœocetus sedgwicki, preserved in the Woodwardian Museum at Cambridge, and have repeatedly examined it with much interest. It is undoubtedly Cetacean, and allied to the genus Balœnoptera, as Mr.
openaire   +4 more sources

A new archaic baleen whale Toipahautea waitaki (early Late Oligocene, New Zealand) and the origins of crown Mysticeti [PDF]

open access: yesRoyal Society Open Science, 2018
A new genus and species of extinct baleen whale †Toipahautea waitaki (Late Oligocene, New Zealand) is based on a skull and associated bones, from the lower Kokoamu Greensand, about 27.5 Ma (local upper Whaingaroan Stage, early Chattian).
Cheng-Hsiu Tsai, R. Ewan Fordyce
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

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