“Baignade en rivière” again
Cute animals ♥
This photo is a two-fer: two awesome geology features in one! On the surface of this rock you will notice faint lines that stretch from the lower left hand corner of the image to the upper right hand corner. These lines are called glacial striations and they form as a glacier scratches the rock surface as it moves.
The rock surface that was scratched by the moving glacier represents an entirely different time, waaay before the glaciers, when stromatolites dotted the shoreline of an ancient water body that covered Montana. The circles that you see in the rock are the tops of stromatolites, formed by ancient cyanobacteria.
A great place to see stromatolites and striations is on the Grinnell Glacier Trail. For your best chance of seeing these features free of snow, try hiking the trail in late July or August. NPS Photo
[Image Description: Lines and circles etched into a rock surface.]
Figurilla en Forma de Rana
La pequeña pieza elaborada en oro, con incrustaciones de turquesa a manera de ojos, procede de Chichén Itzá y seguramente poseía un especial simbolismo por el estrecho vinculo existente entre los anfibios, las deidades y el inframundo.
INAH
Ammonites on Matrix (Quenstedtoceras sp., Jurassic) - Volga River, Ulyanovsk, Russia
This extremely artistic assemblage of large and small ammonites from Russia demonstrate an intense iridescence and highlights due to the presence of metallic Pyrite. The cluster has been positioned on a new matrix, as the grainy rock in which these Quenstedtoceras cephalopods were collected is not hard nor stable enough to display them permanently. The added component is an attractive piece of what is known as septarian, a mud-like material that grows in nodules. In this instance, yellowish Calcite crystals and gray sediment have formed the rock on which these colorful ammonites reside. The cluster is quite representative of the Volga River material, and that combination results in a dramatic display specimen.
Overall Measurements: 6.30 x 5.51 x 5.71 inches (16.00 x 14.00 x 14.50 cm)
Fiann on Instagram: “Here is a shot along the vertebral column of my smallest ichthyosaur called Bella. At the end you’ll see how her vertebrae compare to the biggest vert I’ve found from the same location. This huge bone is from an animal that would have been over 8 metres long, which is a bit bigger than poor little Bella! These fossils are both around 198 million years old. Bella was prepared by the ever talented @alexander_james_moore.
Researchers have designed an artificial womb-like device that could drastically change the way we care for extremely premature babies. The device, which has been used successfully with lambs, mimics the environment of a real womb. It’s designed to allow critically preterm infants to continue developing as they normally would.
Via ResearchGate
Image credit: Children’s Hospital of Philadelphia
More in Nature: An extra-uterine system to physiologically support the extreme premature lamb
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Heather Nesheim - https://www.etsy.com/es/people/heddarsketch - https://twitter.com/heddarsketch
Batalla épica con final inesperado
alexspaeth Moonrise in the Devil’s Garden
-Grand Staircase-Escalante National Monument (I hope still)