A clever new study shows that blue whales lean on their memory to guide their epic migrations.
The blue whales of the North Pacific spend their winters in their breeding grounds off California and Costa Rica. Come spring, they swim up the coast of North America toward the food-rich summer waters of the Pacific Northwest. They could make the journey in two months (and they do, on the reverse trip back south). Instead, they take twice that time, pausing to gorge themselves on blooms of krill that appear along the way. It’s a leisurely season-long tour of a continent-wide buffet line.
Sourced through Scoop.it from: www.theatlantic.com
The post Blue Whales’ Migrations Depend on Their Memories and not on Their Current Food Location appeared first on Antonios Bouris.
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New technique makes it easier to build stable “tissues”
3D-printed tissues and organs could revolutionize transplants, drug screens, and lab models—but replicating complicated body parts such as gastric tracts, windpipes, and blood vessels is a major challenge. That’s because these vascularized tissues are hard to build up in traditional solid layer-by-layer 3D printing without constructing supporting scaffolding that can later prove impossible to remove.
One potential solution is replacing these support structures with liquid—a specially designed fluid matrix into which liquid designs could be injected before the “ink” is set and the matrix is drained away. But past attempts to make such aqueous structures have literally collapsed, as their surfaces shrink and their structures crumple into useless blobs.
Sourced through Scoop.it from: www.sciencemag.org
The post Liquid-in-liquid printing method could put 3D-printed organs within reach appeared first on Antonios Bouris.
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Birds display a rainbow palette of colors, many of which come from special arrangements of melanin, the pigment that gives color to our skin. Researchers at the University of Akron have developed a safe and stable pigment based on the melanin structures.
In the colorful world in which we live, colors are significant for not only aesthetics and pleasure, but also for communication, signaling, and security. Colors are produced through either absorption of light by molecules — pigmentary colors — or scattering of light by nanostructures — structural colors.
Sourced through Scoop.it from: wksu.org
The post Researchers Create New Non-Toxic Pigments Inspired By Bird Feathers appeared first on Antonios Bouris.
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