Results 41 to 50 of about 71,821 (310)

Single‐Cell Transcriptomic Atlases of Camels and Cattle Unravel Molecular Evolution of Digestive and Metabolic Systems

Advanced Science, EarlyView.
We generated multi‐tissue single‐cell transcriptomic atlases of camels and cattle, uncovering conserved and lineage‐specific cellular features across digestive and metabolic systems. Cross‐species comparisons revealed the evolutionary origin of the camel glandular sac and identified novel cell populations linked to physiological specialization ...
Tao Shi, Huiquan Shan, Haoping Wang, Xi Guo, Houcheng Li, Bo Han, Senlin Zhu, Fei Wang, Guanghui Tan, Zhannur Niyazbekova, Jilong Ren, Yaqi Zhou, Qi Zhang, Weijie Zheng, Minghui Jia, Ao Zhang, Xuesha Cao, Huizeng Sun, Dongxiao Sun, Lingzhao Fang, Yi Zheng, Xihong Wang, Yu Jiang   +22 more
wiley   +1 more source

Gone in a Splash? Temporal Dynamics of Flukeprint Environmental DNA (eDNA) Detection for Common Coastal Northeast Pacific Cetacean Species

Environmental DNA
Environmental DNA (eDNA) analytical techniques have been developed and applied to a small subset of cetacean species worldwide. Direct or “flukeprint” eDNA sampling has previously been proven as an effective approach for detecting DNA from target ...
Chloe V. Robinson, Emma Laqua, Amy Migneault, Gary J. Sutton, Karina Dracott, Ashley Bachert   +5 more
doaj   +1 more source

Thermal Footprints of Whales [PDF]

Oceanography, 2009
Under the right meteorological conditions, whales can leave a trail of cool spots on the ocean surface that are detectable in infrared images. When the wind is light and the sun is shining, the surface water warms to produce a thermal gradient in the top
James Churnside, Lev Ostrovsky, Tim Veenstra   +2 more
doaj  

Analyses of ovarian activity reveal repeated evolution of post-reproductive lifespans in toothed whales

Scientific Reports, 2018
In most species the reproductive system ages at the same rate as somatic tissue and individuals continue reproducing until death. However, females of three species – humans, killer whales and short-finned pilot whales – have been shown to display a ...
S. Ellis, D. Franks, S. Nattrass, Thomas E. Currie, M. Cant, Deborah A. Giles, K. Balcomb, D. Croft   +7 more
semanticscholar   +1 more source

Neural Network‐Based Permittivity Engineering of Magnetic Absorbers for Customizable Microwave Absorption

Advanced Science, EarlyView.
A neural network‐enabled permittivity engineering paradigm is introduced, transcending traditional trial‐and‐error design. By decoupling electromagnetic parameters and screening a high‐throughput feature space, an ultrathin (1.0 mm) magnetic absorber is inversely designed, experimentally achieving a superior and customizable 5.1 GHz bandwidth and ...
Chenxi Liu, Jinzhe Li, Sen Li, Zhongqiu Guo, Yao Chen, Tian Li, Renchi Qin, Jiaxu Sun, Yongxi Lu, Fanbin Meng   +9 more
wiley   +1 more source

Sexing From Seawater: Application of Environmental DNA Beyond Species Detection for Cetaceans

Environmental DNA
Anthropogenic pressures on marine ecosystems are intensifying, highlighting the need to bridge knowledge gaps for species at risk. Data deficiencies, particularly for species recovering from historic declines, such as marine megafauna like whales, hinder
Chloe Victoria Robinson, Emma June Laqua, Adam Warner, Gary J. Sutton, Michael W. D. Judson, Karina Dracott   +5 more
doaj   +1 more source

Groundtruthing of pelagic forage fish detected by hydroacoustics in a whale feeding area using environmental DNA

Environmental DNA, 2020
Conservation of whales, considered as umbrella species in marine environments, requires to be able to understand their relationships with ecosystem components such as prey species, including pelagic fish. However, studying such relationships in nature is
Chloé Suzanne Berger, Bérénice Bougas, Samuel Turgeon, Sophia Ferchiou, Nadia Ménard, Louis Bernatchez   +5 more
doaj   +1 more source

High mortality of blue, humpback and fin whales from modeling of vessel collisions on the U.S. West Coast suggests population impacts and insufficient protection

PLoS ONE, 2017
Mortality from collisions with vessels is one of the main human causes of death for large whales. Ship strikes are rarely witnessed and the distribution of strike risk and estimates of mortality remain uncertain at best.
R. C. Rockwood, J. Calambokidis, J. Jahncke   +2 more
semanticscholar   +1 more source

Adaptive Control of Run‐and‐Tumble Escape in Pursuit‐Evasion Dynamics of Intelligent Active Particles

Advanced Intelligent Systems, EarlyView.
The pursuit‐evasion game is studied for two adversarial active agents, modeled as deterministic self‐steering pursuer and stochastic, cognitive evader. For a successful evasion strategy, the motile target has to exploit all available pursuer information, e.g., by tuning the tumbling frequency with the pursuer distance.
Segun Goh, Dennis Haustein, Gerhard Gompper   +2 more
wiley   +1 more source

Abundance of whales in West and East Greenland in summer 2015

NAMMCO Scientific Publications, 2019
An aerial line transect survey of whales in West and East Greenland was conducted in August-September 2015. The survey covered the area between the coast of West Greenland and offshore (up to 100 km) to the shelf break.
Rikke Guldborg Hansen, Tenna K. Boye, Rasmus S. Larsen, Nynne H. Nielsen, Outi Tervo, Rasmus D. Nielsen, Marianne H. Rasmussen, Mikkel H. S. Sinding, Mads Peter Heide-Jørgensen   +8 more
doaj   +1 more source