Results 51 to 60 of about 71,821 (310)

North Atlantic blue and fin whales suspend their spring migration to forage in middle latitudes: building up energy reserves for the journey? [PDF]

PLoS ONE, 2013
The need to balance energy reserves during migration is a critical factor for most long-distance migrants and an important determinant of migratory strategies in birds, insects and land mammals.
Mónica A Silva, Rui Prieto, Ian Jonsen, Mark F Baumgartner, Ricardo S Santos   +4 more
doaj   +1 more source

A geometric morphometric approach for detecting different reproductive stages of a free-ranging killer whale Orcinus orca population

Scientific Reports
The expansion of drone-based aerial imagery has facilitated an increase in data obtained from free-ranging marine mammal populations, in particular cetacean species.
Chloe V. Robinson, Brittany C. Visona-Kelly   +1 more
doaj   +1 more source

Whale grief: Episodes I + II

Performance Philosophy
In this piece, Laura Cull Ó Maoilearca offers two stories that approach the experience of grief and loss from an interspecies perspective with a particular focus on whales.
Laura Cull Ó Maoilearca
doaj   +1 more source

Helmeted hornbill cranial kinesis: Balancing mobility and stability in a high‐impact joint

The Anatomical Record, EarlyView.
Abstract Prokinesis—in which a craniofacial joint allows the rostrum to move relative to the braincase—is thought to confer diverse advantages in birds, mostly for feeding. A craniofacial joint would, however, be a weak link if cranial stability is important. Paradoxically, we have identified a craniofacial joint in helmeted hornbills (Rhinoplax vigil),
Mike Schindler, Benjamin Flaum, Armita Razieh Manafzadeh, Viktoriia Kamska, Kanmani Chandra Rajan, Maria Jose Robles Malagamba, Ruien Hu, Daniel Baum, Mason N. Dean   +8 more
wiley   +1 more source

Assessing social behaviour between baleen whales (Mysticeti) and dolphins (Delphinidae)

Discover Animals
The dynamics and factors influencing interspecies interactions in the wild are not well understood, particularly among social marine animal species such as Mysticetes and Delphinadae.
Jan-Olaf Meynecke, Olivia Crawley
doaj   +1 more source

Neuroanatomy of the Cetacean Sensory Systems

Animals, 2023
Cetaceans have undergone profound sensory adaptations in response to their aquatic environment during evolution. These adaptations are characterised by anatomo-functional changes in the classically defined sensory systems, shaping their neuroanatomy ...
Steffen De Vreese, Ksenia Orekhova, Maria Morell, Tommaso Gerussi, Jean-Marie Graïc   +4 more
doaj   +1 more source

Noninvasive unmanned aerial vehicle provides estimates of the energetic cost of reproduction in humpback whales

, 2016
An animal's body condition will affect its survival and reproductive success, which influences population dynamics. Despite its importance, relatively little is known about the body condition of large whales and its relationship to reproduction.
F. Christiansen, A. Dujon, K. Sprogis, J. Arnould, L. Bejder   +4 more
semanticscholar   +1 more source

Functional models from limited data: A parametric and multimodal approach to anatomy and 3D kinematics of feeding in basking sharks (Cetorhinus maximus)

The Anatomical Record, EarlyView.
Abstract Basking sharks, Cetorhinus maximus (Gunnerus, Brugden [Squalus maximus], Det Kongelige Norske Videnskabers Selskabs Skrifter, 1765, vol. 3, pp. 33–49), feed by gaping their mouths and gill slits, greatly reorienting their cranial skeletons to filter food from water.
Tairan Li, Mike Schindler, Martha Paskin, Venkata A. Surapaneni, Elliott Scott, Sabine Hauert, Nicholas Payne, David E. Cade, Jeremy A. Goldbogen, Frederik H. Mollen, Daniel Baum, Sean Hanna, Mason N. Dean   +12 more
wiley   +1 more source

Intraspecific variation of cochlear morphology in bowhead and beluga whales

The Anatomical Record, EarlyView.
Abstract The bony labyrinth of the petrosal bone, a distinctive feature of mammal skulls, is often identified in micro‐computed tomography imaging to infer species' physiological and ecological traits. When done as part of a comparative study, one individual specimen is normally considered representative of a species, and intraspecific variation is ...
John Peacock, J. G. M. Thewissen
wiley   +1 more source

The Foe You Know: Observations of Interspecific Interactions Between Small Cetaceans and Northern Resident Killer Whales (Orcinus orca) in the Northeast Pacific

Ecology and Evolution
We documented the first aerial observations of interspecific interactions of fish‐eating, northern resident killer whales (Orcinus orca) with two small cetacean species, Dall's porpoises (Phocoenoides dalli) and Pacific white‐sided dolphins ...
Brittany C. Visona‐Kelly, Lance G. Barrett‐Lennard   +1 more
doaj   +1 more source