Results 91 to 100 of about 47,022 (294)

Do shortfin mako Isurus oxyrinchus hunt dolphins actively?

Journal of Fish Biology, EarlyView.
Abstract Direct evidence of shark predation on cetaceans is scarce, making it difficult to differentiate between stomach contents that have been scavenged and actively hunted. This study reports the presence of dolphin (Tursiops aduncus and Stenella clymene) remains in the stomachs of three large shortfin makos Isurus oxyrinchus.
Gonzalo Mucientes, Nair Vilas‐Arrondo, David Villegas‐Ríos   +2 more
wiley   +1 more source

The claustrum of the bottlenose dolphin Tursiops truncatus (Montagu 1821)

Frontiers in Systems Neuroscience, 2014
The mammalian claustrum is involved in processing sensory information from the environment. The claustrum is reciprocally connected to the visual cortex and these projections, at least in carnivores, display a clear retinotopic distribution.
B. Cozzi, Giulia Roncon, A. Granato, M. Giurisato, M. Castagna, A. Peruffo, M. Panin, C. Ballarin, S. Montelli, A. Pirone   +9 more
semanticscholar   +1 more source

Square-Diamond Illusion in Bottlenose Dolphin [PDF]

International Journal of Comparative Psychology
Animals do not see the external world as it is. Different animals process information in different ways, even when looking at the same object. A visual illusion is a psychological phenomenon by which the eye perceives something as different from what it is.
Murayama, Tsukasa, Yamagishi, Mizuki, Yamaguchi, Maho   +2 more
openaire   +2 more sources

How is the third jaw joint in whales different? Diverse modes of articulation between the jaws of whales

Journal of Anatomy, EarlyView.
This study conducts the first comprehensive morphological investigation of the mandibular symphysis in whales. Using gross anatomical observation and CT cross‐sectional data, we describe diverse joint morphologies across 74 extant and fossil cetacean taxa. Toothed whales exhibit unfused, partially fused, or fully fused symphyses.
Rebecca J. Strauch, Nicholas D. Pyenson, Carlos Mauricio Peredo   +2 more
wiley   +1 more source

Admixture Increases Genetic Diversity and Adaptive Potential in Australasian Killer Whales

Molecular Ecology, EarlyView.
ABSTRACT Admixture is the exchange of genetic variation between differentiated demes, resulting in ancestry within a population coalescing in multiple ancestral source populations. Low‐latitude killer whales (Orcinus orca) populations typically have higher genetic diversity than those in more densely populated, high productivity and high‐latitude ...
Isabella M. Reeves, John A. Totterdell, Jonathan Sandoval‐Castillo, Emma L. Betty, Karen A. Stockin, Ramari Oliphant Stewart, Muriel Johnstone, Andrew D. Foote   +7 more
wiley   +1 more source

Stable Carbon and Nitrogen Isotopes Show Evidence of Resource Partitioning Between Spinner Dolphins (Stenella longirostris) and Large Pelagic Fishes From the Fernando de Noronha Archipelago

Marine Mammal Science, EarlyView.
ABSTRACT We applied stable carbon and nitrogen isotopes to investigate the trophic ecology of four large pelagic predators from the Fernando de Noronha Archipelago (FNA), northeastern Brazil: spinner dolphin (Stenella longirostris), yellowfin tuna (Thunnus albacares), wahoo (Acanthocybium solandri), and great barracuda (Sphyraena barracuda).
Victor Uber Paschoalini, Genyffer Cibele Troina, Marcos César de Oliveira Santos   +2 more
wiley   +1 more source

The emergent properties of a dolphin social network

, 2003
Many complex networks, including human societies, the Internet, the World Wide Web and power grids, have surprising properties that allow vertices (individuals, nodes, Web pages, etc.) to be in close contact and information to be transferred quickly ...
Lusseau, David
core   +2 more sources

Locus coeruleus complex of the family Delphinidae [PDF]

, 2018
The locus coeruleus (LC) is the largest catecholaminergic nucleus and extensively projects to widespread areas of the brain and spinal cord. The LC is the largest source of noradrenaline in the brain.
Arbelo, Manuel, Bernaldo De Quir\uf3s, Yara, Bombardi, Cristiano, Cozzi, Bruno, Fern\ue1ndez, Antonio, Herr\ue1ez, Pedro, Sacchini, Simona   +6 more
core   +2 more sources

Epidermal Growth in the Bottlenose Dolphin, Tursiops truncatus

Journal of Investigative Dermatology, 1985
Epidermal growth in two mature female bottlenose dolphins, Tursiops truncatus, was investigated by following the movement of a cohort of tritiated thymidine-labeled epidermal cells for 59 days. The majority of the cells migrated in a cluster which was estimated to reach the skin surface in 73 days. We calculate that the outermost cell layer is sloughed
David J. St. Aubin, J. R. Geraci, Bradley D. Hicks, William R. Brown   +3 more
openaire   +3 more sources

Genetic Assessment of the Spinner Dolphin (Stenella longirostris) in the Largest Offshore Sedimentary Basin in Brazil

Marine Mammal Science, EarlyView.
ABSTRACT Assessing the genetic diversity of a population is critical to evaluate its resilience in the face of anthropogenic impacts. This study aimed to assess the genetic diversity and structure of the spinner dolphins (Stenella longirostris) that inhabit the Santos Basin (SB), south and southeast Brazil.
Thaís Leal, Ana Lúcia Cypriano‐Souza, Paulo C. Simões‐Lopes, Sandro L. Bonatto, Jeremy J. Kiszka, Ruth Y. Ewing, Adam Lache, Maria C. Cartolano, Ana P. B. Costa   +8 more
wiley   +1 more source