Dr. Jaimi Gray

@jaimiagray.bsky.social

1841 Followers 1792 Following

Aussie Research Scientist at UTCT (UT Austin) | CT scanning | diceCT | morphology | evolution | she/her graysvertebrateanatomy.com

A black background with green cartoon at the bottom of the image. Above the grass are 7 card backs that are styled purple with the radiation symbol in the middle. A "critter card" for the spiny lumpsucker in the top middle of the image gives access to a 3D model via tiny link and QR code. Surrounding the critter cards are silhouettes of 7 other 3D models that represent other 3D models in the set.
A 3D model made from a micro-CT scan of a Pacific spiny lumpsucker, with the skeleton rendered in light brown/beige and the tubercles rendered in a gradient of colors, beginning with pink at the head, and changing from purple, to blue, to teal as you move towards the tail. Outline of the body is rendered in white and transparent. Shown in antero-lateral view (top), anterior view (bottom left), and left lateral view of the head (bottom right). Scale bar at the bottom right is 5 mm.
Two grayscale cross sections lengthways through a contrast-enhanced CT scan of a yellow spotted river turtle. The left side shows a more dorsal cross section, the right side shows a more ventral cross section.
3D Renderings of a contrast-enhanced CT scan of a yellow spotted river turtle, colored in brown (least dense tissues), green (medium density tissues), and yellow (high density tissues). A dorsal view is shown at the top of the image, and a ventral view is shown at the bottom of the image.
Colored rendering of a CT scan of Bellator militaris, in anterior and anterolateral view
3D rendering of a whole body CT scan of a chimpanzee, showing the skeleton with a density map where yellow = most dense material, blue = medium density material, purple = low density material. Top shows 3 images of the whole body rendered in a series rotating from front to back. Bottom shows a close up of the head and shoulders. The "oVert" symbol is in the top right corner. In the bottom left corner it reads "Pan troglodytes; YPM:VZ:015959; MorphoSource ID: 0000058004"
3D rendering of a CT scan of Brachycephalus nanicus, with the skeleton rendered in light brown and skin rendered in transparent purple. Top = dorsal view, bottom = ventral view. In the bottom right corner there is an image of the frog (a small brown frog) sitting on a coin.
Two sleepy lizards side by side, photographed on the side of a rural road in South Australia.
A 3D rendering of a CT scan of Tiliqua rugosa, facing the front (top) and facing the back (bottom), rendered in yellow (most dense parts), pink (medium density parts), and blue (least dense parts).
A 3D model of a veiled chameleon skull on a black background, with bones colored to demonstrate skull anatomy, animated in "exploding skull" style, where all bones move apart and back together again in a loop.
Image of a 3D model of a veiled chameleon skull, with bones colored to demonstrate skull anatomy, on a black background. Model is shown in lateral (top), antero-lateral (middle), and anterior (bottom) views. A small image of the whole museum specimen is shown with a scale bar in the bottom right corner.
top left - front page of the PDF of the paper entitled " Establishment of Aquatic Rio Cauca Caecilians, Typhlonectes natans (Fischer 1880) (Gymnophiona: Typhlonectidae), in Florida, with Notes of their Relative Abundance, Distribution, and Natural History. Top right - a 3D rendering of a CT scan of a caecilian, with bone colored skeleton and transparent body, with fish bones inside (rendered in blue) and radiodense digested food (rendered in yellow). Bottom - photograph of a live Rio Cauca Caecilian.
A 3d rendering of a CT scan of two Rio Cauca caecilian with transparent body and bone colored skeleton, showing baby caecilians inside, each rendered in a different color. There are three baby caecilians in the top individual, rendered in green, pink, and purple, and one baby caecilian (rendered in blue) plus one unidentified object (rendered in yellow) in the second individual.
A 3d rendering of a CT scan of a Rio Cauca caecilian with transparent body and bone colored skeleton, showing 7 baby caecilians inside, each rendered in a different color - counter-clockwise from tail to head - red, orange, yellow, green, light blue, dark blue, purple.
3D rendering of a diceCT scan of a coiled green tree python, rendered in bright green. Slightly overlapping is a 3D rendering of the python's skeleton, rendered in a light brown color.
Display slide that reads "Joint meeting of Ichthyologists and Herpetologists Saturday July 12, 2025 / 10.30am - 10.45 Session with big attendance '28.1 | the Diffusion Diaries: using Diffusible Iodine-Based Contrast-Enhanced...' Jaimi Gray"
Picture of a powerpoint slide that reads "Science in 3D"
A coffee cup sitting on a table at an airport. Next to the coffee cup lies a pile of colorful stickers showcasing 3D renderings of CT scans
Video showing three anatomical models of brains, from left to right: fish, frog, and lizard. The brains are colored to demonstrate anatomical regions, many times their real size (they fit in the palm of your hand), and can be removed from their stand, as shown by the person in the video, whose hand picks up the lizard brain model from the stand and rotates it around.
Top: black and white 3D rendering of a dusky basslet fish Bottom left: purple/pink 3D rendering of the brain of the fish, with a scale bar representing 0.5 mm Bottom right: A photograph of a 3D printed and painted anatomical model of the fish brain on a white stand, with colors demonstrating anatomical regions.
Seven 3D renderings of caecilians (limbless amphibians) arranged on a balck background. Each is rendered in a different color, from left to right and top to bottom: red, teal, electric blue, purple, green, orange, yellow.
Screenshot of the media page on MorphSource, showing specimen/media details on the left, and 3D viewer with controls on the right. A colored 3D model of a gopher tortoise skeleton is shown in the 3D viewer.
image with black background, showing a colored 3D model of a gopher tortoise with bisected shell and transparent right side, revealing the skeleton inside. Shown in anterior (top), anterolateral (middle), and right lateral (bottom) views. An image of the museum specimen on a white background, with scale bar, is shown in the top left corner.
On the left of the image are three different views of a 3D model of the skull of a leaf tail gecko (Phyllurus platurus), with all bones isolated and colored to demonstrate skull anatomy, from top to bottom, anterolateral view, dorsal view, and anterior view. On the right side of the image is a 3D rendering of a contrast enhanced CT scan of the whole body of the specimen, rendered in purple.
The computer lab at UTCT, with large monitors showing CT data being processed by students. Dave Edey sits at a PC at the front of the room, demonstrating how to use the Dragonfly CT processing software.
Sign that reads "welcome to UTCT bio/paleo short course, Jessie, Dave Romy, Jaimi"
The Non-Clinical Tomography Users Research Network standing all together in the dinosaur hall at the American Museum of Natural History
Jaimi Gray presenting on stage behind a podium at the American Museum of Natural History. The slide behind her details the number of genera the oVert project scanned.
A picture of the front entrance of the American Museum of Natural History
Screenshot of the top of the front page of an article in IOB titled The Diffusion Diaries: Diffusible Contrast-Enhanced Computed Tomography for Vertebrate Natural History Specimens.
Video of an iodine solution (brown in color) being poured into a tupperware container containing a preserved chameleon specimen
Video showing a jug on a magnetic stirrer, the liquid inside the jug changes from clear to brown/amber as the stirrer is turned on.
Image of lead author Jaimi Gray, placing a mounted specimen inside the GE CT scanner at the University of Florida.
Three-dimensional renderings of the brains of a dusky basslet (Lipogramma anabantoides UF:fish:242436 [A and B]), a midwife toad (Alytes obstetricans YPM:HERR:004877 [C and D]), a collared lizard (Crotaphytus collaris UF:herp:29333 [E and F]), and a Schneider's leaf-nosed bat (Hipposideros speoris YPM:MAM:005627 [G and H]). In A, C, E, and G, brains are shown in the lateral view with bisected skull showing brain placement inside the head. In B, D, F, and H, brains are shown in dorsal view. A 3D rendering of the whole specimen is shown on the left.
Graphical abstract for "The Diffusion Diaries: Diffusible Iodine-Based Contrast-Enhanced CT for Vertebrate Natural History Specimens", showing the number of scans : "252 scans of 205 specimens from 7 natural history collections" a plot showing how staining time increases with mass, log-transformed (bottom left), a pie chart showing the Tissue Condition scores (TCS) recorded for all specimens (bottom middle), and a screenshot of a lab protocol for diceCT'ing museum specimens (bottom right)
3D rendering of a CT scan of a Daubenton's free tailed bat, colored in yellow (most dense), blue (medium density), and purple (low density), (left) ventral view, (middle) right lateral view, right, dorsal view.
A rotating 3D rendering of a CT scan of a coiled small rattlesnake skeleton, with the rattlesnake rendered in brown and the rodent inside rendered in pink and orange.
3D renderings of a CT scan of a small rattlesnake. Top: rendering of snake skeleton in brown with rodent skeleton inside rendered in pink and orange, overlayed on the same image with the snake's skeleton rendered transparent and the rodent in pink and orange. Bottom: Closer up view of the rodent viewed from the other side, showing the front of the skull with teeth.
Text that reads: The University of Texas High-Resolution X-ray CT Facility (UTCT) will host a short course on the fundamentals of acquisition, visualization, and analysis of high-resolution X-ray CT (HRXCT) data for biological and paleontological specimens June 2-4, 2025 in Austin, TX. This short course will present an overview of the acquisition, interpretation, 3D visualization and analysis of HRXCT data. This will be followed by hands-on training focused on 3D visualization, surface extraction, and segmentation (e.g., endocasts, digital dissection) including deep learning. Covered programs include ImageJ, Dragonfly, and 3D Slicer/SlicerMorph. This course is sponsored in part by NSF and funds are available to help cover the cost of travel, lodging, and meals. There is no charge to attend. Because we will not be able to accept all applicants, preference will be given to those who have/will have HRXCT data for the course and have a demonstrated need for immediate application of the skills learned. Students and early-career researchers receive priority. Participants are invited to bring their own HRXCT data, or to have specimens scanned (at a significant discount) at UTCT prior to the course.
Flyer for the Tomography for Scientific Advancement's 3D Slicer workshop at the American Museum of Natural History in New York, on the 12th of May. Image in the center feature s the 3D Slicer logo surrouned by 3D renderings of a rattlesnake skull in brown, mesh in blue, half cropped in grey, and with all bones segmented in mulitple colors. Instructor Dr. Jaimi Gray, High-Resolution X-ray CT Facility, University of Texas at Austin.
An open book showing a double page featuring 3D renderings of CT scans of a hedgehog, a turtle with eggs inside, a lizard with 7 babies inside, an armadillo, and a green heron on a black background. Inset: cover of the book Demark's "Science Illustrated" with text in Swedish "the biggest news of the year in the world of research"
A banner image showing CT scans of a collection of 3D rendering of the skeletons and soft tissue of different vertebrates, including amphibians, reptiles, birds, mammals, and fish
screenshot from a webpage showing a collection of 10 different colored skull anatomy 3D models of various amphibians and reptiles, arranged in a grid. For each model, the name and catalog number are display, along with a button for each that directs the user to a 3D model for that skull.
Screenshot of Sketchfab model of green anaconda skull, with bones colored and labelled to demonstrate skull anatomy. Background of scene shows a color key and an image of a live green anaconda.
3D model of a green anaconda skull, with individual bones colored and labelled to demonstrate anatomy. Model is first rotated around on the screen, and then animated to "explode" skulls bones apart, then back together again.
Morgan Chase, Paul Gignac, Jaimi Gray, and JJ Hill standing in front of a glass window, with the US Capitol building in the background.
A picture of the Capitol building in Washington DC, taken from a rooftop down the street.
A rattlesnake skull in anterolateral (from left to right), with skulls bones colored to demonstrate skull anatomy. A color key on the left hand side, and and image of a rattlesnake showing the head location in the bottom left corner.
A rattlesnake skull in dorsal, ventral, and lateral view, (from left to right), with skulls bones colored to demonstrate skull anatomy.
A table listing the colors, bones, UBERON links, and hex codes for colors that match the color scheme used in the colored skull 3D models.
A screenshot of a website displaying 8 colored skull models of amphibians and reptiles, along with buttons that will allow the user to navigate to 3D models for each skull.
A 3D rendering of the Bornean frog, Barbourula kalimantinensis, a dorsoventrally flat frog with large and robust legs, in antero-lateral view, colored purple and blue