Results 31 to 40 of about 14,897 (245)
Frontiers in Marine Science, 2023 In the Southern Hemisphere, baleen whales generally undertake migrations between productive feeding grounds at high latitudes and breeding grounds at lower latitudes. Pygmy right whales (Caperea marginata) (PRW) are the smallest and most enigmatic baleen
Adelaide V. Dedden +10 more
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Oral cavity hydrodynamics and drag production in Balaenid whale suspension feeding. [PDF]
PLoS ONE, 2017 Balaenid whales feed on large aggregates of small and slow-moving prey (predominantly copepods) through a filtration process enabled by baleen. These whales exhibit continuous filtration, namely, with the mouth kept partially opened and the baleen ...
Jean Potvin, Alexander J Werth
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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
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PeerJ, 2023 Baleen whales (Mysticeti) are gigantic filter-feeding cetaceans possessing the unique soft tissue structure baleen and lacking adult teeth; Oligocene fossils have revealed a wealth of early diverging tooth-bearing mysticetes highlighting the transition ...
R. Boessenecker, B. Beatty, J. Geisler
semanticscholar +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]
Royal 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
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Baleen whales in the Scotia Sea during January and February 2003
J. Cetacean Res. Manage., 2023 Different species of baleen whales display distinct spatial distribution patterns in the Scotia Sea during the austral summer. Passive acoustic and visual surveys for baleen whales were conducted aboard the RRS James Clark Ross in the Scotia Sea and ...
A. Sirovic, J. Hildebrand, D. Thiele
semanticscholar +1 more source
Lifetime glucocorticoid profiles in baleen of right whale calves: Potential relationships to chronic stress of repeated wounding by Kelp Gulls [PDF]
, 2018 Baleen tissue accumulates stress hormones (glucocorticoids, GC) as it grows, along with other adrenal, gonadal and thyroid hormones. The hormones are deposited in a linear fashion such that a single plate of baleen allows retrospective assessment and ...
Ajó, Alejandro A. Fernández +7 more
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Lethal entanglement in baleen whales [PDF]
Diseases of Aquatic Organisms, 2011 Understanding the scenarios whereby fishing gear entanglement of large whales induces mortality is important for the development of mitigation strategies. Here we present a series of 21 cases involving 4 species of baleen whales in the NW Atlantic, describing the available sighting history, necropsy observations, and subsequent data analyses that ...
Cassoff, Rachel M. +5 more
openaire +3 more sources
How do baleen whales stow their filter? A comparative biomechanical analysis of baleen bending [PDF]
Journal of Experimental Biology, 2018 Bowhead and right whale (balaenid) baleen filtering plates, longer in vertical dimension (3-4+ m) than the closed mouth, presumably bend during gape closure. This has not been observed in live whales, even with scrutiny of videorecorded feeding sequences.
Alexander J. Werth +4 more
openaire +4 more sources
Global Change Biology, 2023 The krill surplus hypothesis of unlimited prey resources available for Antarctic predators due to commercial whaling in the 20th century has remained largely untested since the 1970s.
L. Pallin +16 more
semanticscholar +1 more source