Category: biology

Primate foveola (central region of the retina)…

Primate foveola (central region of the retina)
Hanen Khabou. Vision Institute, Department of Therapeutics. Paris, France.
Fluorescence 40x

Source: 2018 Photomicrography Competition | Nikon’s Small World

Confocal image of fluorescent markers indicati…

Confocal image of fluorescent markers indicating presence of neurons (green), astrocytes (red) and the silk protein-collagen matrix (blue).

Credit: Tufts University

Via Medical Xpress

Scientists grow functioning human neural networks in 3-D from stem cells

Paper: Functional and Sustainable 3D Human Neural Network Models from Pluripotent Stem Cells

A fluid-to-solid “jamming” transition, seen in…

A fluid-to-solid “jamming” transition, seen in materials like glass and foams, has been observed in the developing tissues of zebrafish embryos. Cells in the elongating tail (yellow) “melt apart” to become more pliable but stay packed like a solid further up the body to fix changes in place.

Credit: Brian Long, UC Santa Barbara College of Engineering

Via Quanta Magazine‘Traffic Jams’ of Cells Help to Sculpt Embryos – By measuring mechanical forces inside an embryo for the first time, researchers have shown how a physical “jamming” mechanism assists development.

2018 Nikon Small World in Motion Competition

2018 Nikon Small World in Motion Competition

Above my favorite (second place):

Laser propagating inside a soap membrane. Technique: Reflected Light Epi-Illumination. Dr. Miguel Bandres – Anatoly Patsyk. Technion – Israel Institute of Technology

I recommend take a look both winning videos and honorable mentions.

Of course the winner is awesome too:

Zebrafish embryo growing its elaborate sensory nervous system (visualized over 16 hours of development). Technique: Selective Plane Illumination Microscopy (SPIM). Dr. Elizabeth Haynes – Jiaye “Henry” He. University of Wisconsin – Madison

Very appropriate, if you ask me.

Very appropriate, if you ask me.

Seen at Trust me, I’m a “Biologist”

Kudos for Monroe County Sheriff’s Office…

Kudos for Monroe County Sheriff’s Office… My respect sir.

Seen here.

The stages of regrowth for a salamander leg. T…

The stages of regrowth for a salamander leg. The intact limb is at the left; the series to the right shows the gradual regeneration of the limb over a couple of months. (Credit: James Monaghan laboratory/Northeastern University)

Via Quanta Magazine: Salamander’s Genome Guards Secrets of Limb Regrowth

The axolotl, the lost body parts regeneration champion among vertebrates.

Microscopic image of a single cell artificiall…

Microscopic image of a single cell artificially colored, laying on billions of nanoholes.

Credit: 2018 EPFL

EPFL researchers have developed an innovative label-free method for studying the behavior of single cells continuously and in real time. By placing a cell in a small chamber containing nanosensors and observing it over many hours, it is possible to identify the cell’s unique personality and understand how it communicates. This powerful new technology could be used to select the most aggressive cells to combat an enemy. Potential applications include treatments for cancer and autoimmune diseases.

h/t Phys.org: Cell chat: Attacking disease by learning the language of cells

teded: Sea turtles ultimately grow from the si…

teded:

Sea turtles ultimately grow from the size of a dinner plate to that of a dinner table. In the case of the leatherback sea turtle, this can take up to a decade. Happy World Turtle Day!

From the TED-Ed Lesson The survival of the sea turtle – Scott Gass

Animation by Cinematic Sweden

Whiskered Prowfish (Neopataecus waterhousii)

Whiskered Prowfish (Neopataecus waterhousii)

Via CNN: Stonefish are already scary, and now scientists have found they have switchblades in their heads

Paper: Phylogeny and Taxonomy of Flatheads, Scorpionfishes, Sea Robins, and Stonefishes (Percomorpha: Scorpaeniformes) and the Evolution of the Lachrymal SaberPDF