Results 81 to 90 of about 1,178 (171)

Beluga ( Delphinapterus Leucas ) Bubble Bursts: Surprise, Protection, or Play?

open access: yesInternational Journal of Comparative Psychology, 2013
Cetaceans produce a variety of bubble displays, ranging from bubble streams to very large bursts of air. Previous research has indicated that different types of bubbles serve different functions. Using archival video data, we investigated the frequency and function of bubble behavior for four beluga mother-calf pairs housed at Sea World San Antonio ...
Hill, Heather M. M.   +5 more
openaire   +3 more sources

Surveys of belugas and narwhals in the Canadian High Arctic in 1996

open access: yesNAMMCO Scientific Publications, 2002
The summer range of belugas (Delphinapterus leucas) and narwhals (Monodon monoceros) in Prince Regent Inlet, Barrow Strait and Peel Sound in the Canadian High Arctic was surveyed from 31 July to 3 August 1996 with a visual aerial survey of offshore areas
Stuart Innes   +6 more
doaj   +1 more source

Temporal trends of brominated and fluorinated contaminants in Canadian Arctic beluga (Delphinapterus leucas)

open access: yesArctic Science, 2018
Limited information exists regarding contemporary and historical emissions for many anthropogenic chemicals, especially for contaminants of emerging concern (CECs).
Tristan A. Smythe   +7 more
doaj   +1 more source

Analysis of mitochondrial control region nucleotide sequences from Baffin Bay beluga, (Delphinapterus leucas): detecting pods or sub-populations?

open access: yesNAMMCO Scientific Publications, 2002
We report the results of an analysis of the variation in the nucleotide sequence of the mitochondrial control region obtained in 218 samples collected from belugas, Delphinapterus leucas, around the Baffin Bay.
Per Jakob Palsbøll   +2 more
doaj   +1 more source

Use of water as a tool by a beluga (Delphinapterus leucas)

open access: yes, 2023
Captive belugas ( Delphinapterus leucas ) often spit water as object play. One female beluga spit water at a ball to obtain it for play. We examined whether or not this behavior could be considered a tool-use behavior. When the ball was placed 10 cm from the poolside, the beluga poked the ball with her rostrum, while she often spit water at the ball at
Tomonaga, Masaki   +3 more
openaire   +1 more source

The biology behind the counts: tooth development related to age estimation in beluga (Delphinapterus leucas)

open access: yesNAMMCO Scientific Publications, 2014
The widely accepted method of determining ages of beluga is to count dentine growth layer groups (GLGs) in median, longitudinal sections of a tooth. It is essential to understand how these growth layers form and to consider developmental factors that can
Barbara E Stewart, Robert EA Stewart
doaj   +1 more source

Preliminary study on stimulus equivalence in beluga (Delphinapterus leucas)

open access: yesJapanese Journal of Animal Psychology, 1997
Dolphins are thought to possess high cognitive and intellectual skills. The present study investigated the early or spontaneous establishment of the stimulus equivalence in a beluga whale in order to gain insight into the cognitive process in dolphin.
MURAYAMA, Tsukasa, TOBAYAMA, Teruo
openaire   +2 more sources

Rib microstructure in thunniform ichthyosaurs and toothed whales [PDF]

open access: yesPeerJ
The inner microstructure of aquatic amniote ribs can reveal adaptations to physiology and locomotion, but are relatively poorly known for ichthyosaurs, especially ophthalmosaurid taxa whose body shape converges to modern odontocetes.
Jørgen Krøglid   +2 more
doaj   +2 more sources

Beyond the Ridge: Rethinking Thermal Windows in Beluga Whales

open access: yes
Marine Mammal Science, Volume 42, Issue 2, April 2026.
Sam Bartosik‐Velez   +7 more
wiley   +1 more source

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