Latest posts tagged with #Denticles on Bluesky
M.I.S.S. /ICB feature:
Zooming in on #Bonnetheads: Quantifying Impacts of Maturity on Denticle #Morphology
Epstein et al
doi.org/10.1093/icb/...
#Denticles provide #sharks with functional benefits, including protection during mating and enhanced drag reduction during high-speed swimming...
Quantifying the Denticle Multiverse...
an #elasmobranch IOB related work
Rubin et al
doi.org/10.1093/iob/...
Fig. 2
Differences in traits for geometric & linear #denticles illustrated on #fossil denticles of unknown taxa from Deep Sea Drilling Project...
#science #morphology #evolution
Fig. 1 Major parts of a denticle include the crown, the peduncle, and the base; shown here on a spiracle denticle from a Portuguese dogfish Centroscymnus coelolepis (MCZ 38297, juvenile male 650 mm TL) and orientated with the anterior to the left and the posterior to the right (After Vaz et al. 2023).
@elizabethsibert.bsky.social & @garethjfraser.bsky.social & Rubin et al's latest IOB paper has incredible figures!
Be sure to read
"Quantifying the Denticle Multiverse..."
doi.org/10.1093/iob/...
our latest #morphology work involving #Elasmobranch #Denticles
#science #sharks #biologists
IOB - Fresh Ink!
Quantifying the #Denticle Multiverse: A Standardized Coding System to Capture Three Dimensional #Morphological Variations for Quantitative #Evolutionary & #Ecological Studies of #Elasmobranch #Denticles
Rubin, @garethjfraser.bsky.social , et al
doi.org/10.1093/iob/...
ICB's Free read Friday-
Experimental Studies of #Bioinspired #Shark #Denticles for Drag Reduction
Marshall T Graybill, Nicole W Xu ( nicolexulab.com)
connect with (@)nicolewxu on Insta
www.instagram.com/p/DP1iN-yETx...
& read
doi.org/10.1093/icb/...
#oceanography #morphology #biology #science
Hanna Epstein- co author notes the top left image is "A close-up of the dermal denticles of a bonnethead shark, imaged with a scanning electron microscope. Denticles, these tooth-shaped structures, provide a shark with many benefits such as protection and increased drag reduction during swimming."
ICB
"Zooming in on #Bonnetheads: Quantifying Impacts of Maturity on #Denticle #Morphology "
Hannah Epstein , @marianneporter.bsky.social et al
doi.org/10.1093/icb/...
"#Shark skin is covered superficially by the crowns of dermal #denticles, tooth-shaped scales..."
An image that has a background of dark brown with irregular circular or oval like spots that are light brown to tan in color. All the spots look like they are created with perfect circles of colors.
I was instantly reminded of the #dermal #denticles of the #wobbegong #shark!
Dermal denticles are tooth-like structures that create the skin-like external layer on chondrichthyans (sharks, skates, rays, and chimaeras)!
📷 www.naturepl.com/stock-photo/...
What is the significance of the tremendous diversity of #shark skin #denticles? Presenting our experimental approach to understanding this at the Atlanta #SICB2025 meetings. Come to the session for all things shark skin!
Experimental Studies of Bioinspired #Shark Denticles for Drag Reduction
Graybill, Xu
doi.org/10.1093/icb/...
"Continued work on #bioinspired #denticles for drag reduction has wider implications in comparative
#biology ..."
#SharkWeek continues with ICB's
Experimental Studies of #Bioinspired #Shark #Denticles for Drag Reduction
by Marshall T Graybill, Nicole W Xu (nicolexulab.com)
doi.org/10.1093/icb/...
&
IOB's
Interspecific Variation in the Inner #Ear Maculae of #Sharks Sauer et al
doi.org/10.1093/iob/...
So why is this important? A key reason: #denticles on branchial pouch skin are amenable to experimental measurement in the laboratory. We can measure flow over these denticles in live sharks to understand the relationship between denticle shape and flow.
The amazing skin of sharks: a (longish) thread! For some time we’ve been studying the structure and function of #shark #skin and #biomimetic models of shark surfaces. Covered with amazing dermal #denticles (#scales) sharks have skin with a rough texture composed of tiny teeth.
Small teeth, big #denticles
t.co/EMTjCWhYjF
Many congratulations to @elizabethsibert and @SoundsFishyLeah for the publication of their outstanding paper in @ScienceMagazine on #shark diversity through time using #denticles in deep-sea sediments (https://bit.ly/2TKROtf Such weird denticles in extinct species!
Wonderful study revealing a mysterious and sudden loss of shark dandruff accumulation in the fossil record! #denticles
x.com/elizabethsiber…
#Shark skin #denticles are remarkably diverse, but the external skin between gill slits shows a new pattern. @molly_gabler shows a dramatic transition in denticle shape within a few mm in her #SICB2021 talk. #fishsci #sharks #SharkScience @SICB_DCB_DVM
Look at the massive #denticles on this @erinmdillon!
x.com/IseaOrg/status…
It’s time for #SharkScaleSaturday again! Continuing with the theme of missing denticles, this tail surface of a leopard #shark is missing several. Missing #denticles occur all around the body of all species we’ve looked at so far. #swimming #fishsci #SharkScience
We all know that #sharks replace their teeth, but have you ever seen #skin #denticles being replaced? Our new paper (https://bit.ly/2VFtlmY shows denticles emerging from below into gaps at the skin surface in #thresher shark tails. More to come! #swimming #fishsci #SharkScience
