Results 11 to 20 of about 22,102 (258)

Gecko adhesion based sea star crawler robot

open access: yesFrontiers in Robotics and AI, 2023
Over the years, efforts in bioinspired soft robotics have led to mobile systems that emulate features of natural animal locomotion. This includes combining mechanisms from multiple organisms to further improve movement.
Sampada Acharya   +8 more
doaj   +1 more source

Feeding Ecology of Odontaster validus under Different Environmental Conditions in the West Antarctic Peninsula

open access: yesBiology, 2022
To study how Odontaster validus can influence the spatial structure of Antarctic benthic communities and how they respond to disturbance, it is necessary to assess potential dietary shifts in different habitats. We investigated the diets of O.
Lisette Zenteno-Devaud   +6 more
doaj   +1 more source

Bindin from a sea star [PDF]

open access: yesEvolution & Development, 2009
SUMMARY The genetic basis for the evolution of development includes genes that encode proteins expressed on the surfaces of sperm and eggs. Previous studies of the sperm acrosomal protein bindin have helped to characterize the adaptive evolution of gamete compatibility and speciation in sea urchins.
Susana, Patiño   +4 more
openaire   +2 more sources

Sea stars generate downforce to stay attached to surfaces

open access: yesScientific Reports, 2021
Intertidal sea stars often function in environments with extreme hydrodynamic loads that can compromise their ability to remain attached to surfaces. While behavioral responses such as burrowing into sand or sheltering in rock crevices can help minimize ...
Mark Hermes, Mitul Luhar
doaj   +1 more source

Practical Euthanasia Method for Common Sea Stars (Asterias rubens) That Allows for High-Quality RNA Sampling

open access: yesAnimals, 2021
Sea stars in research are often lethally sampled without available methodology to render them insensible prior to sampling due to concerns over sufficient sample quality for applied molecular techniques.
Sarah J. Wahltinez   +4 more
doaj   +1 more source

Eyes, Vision, and Bioluminescence in Deep-Sea Brisingid Sea Stars [PDF]

open access: yesThe Biological Bulletin, 2023
AbstractSea stars are a major component of the megabenthos in most marine habitats, including those within the deep sea. Being radially symmetric, sea stars have sensory structures that are evenly distributed along the arms, with a compound eye located on each arm tip of most examined species.
Garm, Anders   +4 more
openaire   +3 more sources

Live imaging of echinoderm embryos to illuminate evo-devo

open access: yesFrontiers in Cell and Developmental Biology, 2022
Echinoderm embryos have been model systems for cell and developmental biology for over 150 years, in good part because of their optical clarity. Discoveries that shaped our understanding of fertilization, cell division and cell differentiation were only ...
Vanessa Barone, Deirdre C. Lyons
doaj   +1 more source

Sea star wasting [PDF]

open access: yesProceedings of the National Academy of Sciences, 2014
In June of last year, researchers got the first report that sea stars in Washington’s Olympic National Park were succumbing to a new disease outbreak. By August, stars were falling off the rocks—dead by the thousands—at Vancouver Island. “That’s the point at which we started getting samples and alerting people,” says Drew Harvell, a marine ...
openaire   +2 more sources

Detection of a High-Density Brachiolaria-Stage Larval Population of Crown-of-Thorns Sea Star (Acanthaster planci) in Sekisei Lagoon (Okinawa, Japan)

open access: yesDiversity, 2016
Outbreaks of the crown-of-thorns sea star (Acanthaster planci) are likely to be strongly associated with drastic changes in larval survival influenced by food availability. However, no quantitative or qualitative data are available on the distribution of
Go Suzuki   +13 more
doaj   +1 more source

Going deeper and further: a range and depth extension for the deep-sea feather star Paratelecrinus cubensis (Carpenter, 1881) (Comatulida, Atelecrinidae), first record from the Western Pacific [PDF]

open access: yesZooKeys, 2023
A specimen belonging to the deep-sea feather-star family Atelecrinidae was collected in April 2018 at the Kocebu Guyot at 1294 m deep. Based on its morphological characters, the specimen was identified as Paratelecrinus cubensis (Carpenter, 1881).
Zijie Mei, Zhongli Sha, Shao’e Sun
doaj   +3 more sources

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