Results 21 to 30 of about 12,004 (204)

Are white-beaked dolphins Lagenorhynchus albirostris food specialst? Their diet in the southern North Sea [PDF]

, 2010
The white-beaked dolphin Lagenorhynchus albirostris is the most numerous cetacean after the harbour porpoise Phocoena phocoena in the North Sea, including Dutch coastal waters.
Jansen, O.E., Leopold, M.F., Meesters, H.W.G., Smeenk, C.   +3 more
core   +2 more sources

The International Whaling Commission – Beyond Whaling

Frontiers in Marine Science, 2016
Since its establishment in 1946 as the international body intended to manage whaling, the International Whaling Commission (IWC) has expanded its areas of interest to ensure the wider conservation of whales.
Andrew John Wright, Mark Peter Simmonds, Barbara Galletti Vernazzani   +2 more
doaj   +1 more source

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

Royal 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

Genetic Mechanisms Underlying Cortical Evolution in Mammals

Frontiers in Cell and Developmental Biology, 2021
The remarkable sensory, motor, and cognitive abilities of mammals mainly depend on the neocortex. Thus, the emergence of the six-layered neocortex in reptilian ancestors of mammals constitutes a fundamental evolutionary landmark.
Lucía Florencia Franchini
doaj   +1 more source

Cellular Composition of the Brain of a Northern Minke Whale. [PDF]

J Comp Neurol
Avelino‐de‐Souza et al. show that the minke whale has 3.2 billion neurons in the cerebral cortex, as predicted for a generic cetartiodactyl species, which places it and other cetaceans between monkeys and great apes in a ranking of mammal and bird species by total numbers of neurons in the pallium/cerebral cortex.
Avelino-de-Souza K, Patzke N, Karlsson KÆ, Manger PR, Herculano-Houzel S.   +4 more
europepmc   +2 more sources

Rod monochromacy and the coevolution of cetacean retinal opsins. [PDF]

PLoS Genetics, 2013
Cetaceans have a long history of commitment to a fully aquatic lifestyle that extends back to the Eocene. Extant species have evolved a spectacular array of adaptations in conjunction with their deployment into a diverse array of aquatic habitats ...
Robert W Meredith, John Gatesy, Christopher A Emerling, Vincent M York, Mark S Springer   +4 more
doaj   +1 more source

Population parameters and heterogeneity in survival rates of Indo-Pacific humpback dolphins in a heavily urbanized coastal region of southeast China: implications for conservation

Frontiers in Marine Science
The Pearl River Delta (PRD) region on the southeast coast of China is among the largest and most populated metropolitan regions of the world, subjecting the Indo-Pacific humpback dolphins (Sousa chinensis) inhabiting coastal waters of this region ...
Wenzhi Lin, Wenzhi Lin, Wenzhi Lin, Wenzhi Lin, Leszek Karczmarski, Leszek Karczmarski, Stephen C. Y. Chan, Stephen C. Y. Chan, Ruiqiang Zheng, Ruiqiang Zheng, Yuen-Wa Ho, Yuen-Wa Ho, Yaqian Mo, Yaqian Mo   +13 more
doaj   +1 more source

Fine-scale spatial variability of marine acoustic environment corresponds with habitat utilization of Indo-Pacific humpback dolphins in Hong Kong waters

Ecological Indicators
Acoustic properties of the underwater environment are important in maintaining biological processes of various marine organisms. However, with the increasing level of underwater noise in the global ocean, there is a growing need to better understand how ...
Yuen-Wa Ho, Tzu-Hao Lin, Tomonari Akamatsu, Leszek Karczmarski   +3 more
doaj   +1 more source

The first record of a piebald common bottlenose dolphin (Tursiops truncatus) in offshore waters of the north-western Black Sea

Theriologia Ukrainica, 2020
Piebaldism is one of three types of hypopigmentation of animals, when some areas on the skin have no pigments. Anomalously white cetaceans are rare, although they have been reported in more than 20 different cetacean species, including the common ...
Oksana Savenko
doaj   +1 more source

Sexual selection of protamine 1 in mammals [PDF]

, 2015
Protamines have a crucial role in male fertility. They are involved in sperm chromatin packaging and influence the shape of the sperm head and, hence, are important for sperm performance.
Lüke, Lena, Roldán, Eduardo R. S., Tourmente, Maximiliano   +2 more
core   +1 more source