The eyes of the extinct sea scorpion Jaekelopterus rhenaniae have the same structure as the eyes of modern horseshoe crabs (Limulidae). The compound eyes of the giant predator exhibited lens cylinders and concentrically organized ...
Archaeology
Dec 3, 2019
0
39
Circadian clocks must be flexible and they must be able to adapt to varying environmental conditions. Otherwise, it would be impossible for living beings to change their patterns of activity when the days get shorter again ...
Cell & Microbiology
Oct 7, 2019
0
37
Dogs in tropical Africa run the risk of contracting canine trypanosomosis if they are bitten by bloodsucking tsetse flies carrying trypanosomes—microscopic, single-celled organisms found in the bloodstream. In dogs, this ...
Veterinary medicine
Sep 9, 2019
0
12
The function of the visual photopigment rhodopsin and its action in the retina to facilitate vision is well understood. However, there remain questions about other biological functions of this family of proteins (opsins) ...
Plants & Animals
Aug 22, 2019
0
8
Baby jumping spiders can hunt prey just like their parents do because they have vision nearly as good.
Plants & Animals
Jul 31, 2019
0
276
The laboratory of researcher Eloísa Herrera has discovered that during the development of the brain's visual areas, the two retinas communicate with each other temporarily through nervous projections. This connection is ...
Cell & Microbiology
Mar 25, 2019
0
4
Mice with vision enhanced by nanotechnology were able to see infrared light as well as visible light, reports a study published February 28 in the journal Cell. A single injection of nanoparticles in the mice's eyes bestowed ...
Bio & Medicine
Feb 28, 2019
0
1412
In January 2009, the life of engineer Michel Meunier, a professor at Polytechnique Montréal, changed dramatically. Like others, he had observed that the extremely short pulse of a femtosecond laser could make nanometre-sized ...
Bio & Medicine
Nov 19, 2018
0
20
Biologists at Johns Hopkins University grew human retinas from scratch to determine how cells that allow people to see in color are made.
Cell & Microbiology
Oct 11, 2018
1
455
Blue light from digital devices and the sun transforms vital molecules in the eye's retina into cell killers, according to optical chemistry research at The University of Toledo.
Biochemistry
Aug 8, 2018
4
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