A Caltech-led team of researchers has discovered that a small-molecule metabolite, produced by bacteria that reside in the mouse gut, can travel to the brain and alter the function of brain cells, leading to increased anxiety ...
Plants & Animals
Feb 14, 2022
0
128
(PhysOrg.com) -- In the developing fetus, cell growth follows a very specific schedule. In the eye's retina, for example, cones -- which help distinguish color during the day -- develop before the more light-sensitive rods ...
Evolution
May 20, 2009
0
0
How the intricate network of blood vessels forms within the brain has long fascinated biologists. Though the human brain comprises only 2 percent of body weight it receives up to 15 percent of the cardiac output through this ...
Plants & Animals
Aug 14, 2012
0
0
An international, multidisciplinary team that includes faculty members from The University of Texas at Arlington has published a paper in the journal Philosophical Psychology that wades into the debate about whether fish ...
Plants & Animals
Apr 27, 2021
2
52
The vocalizations of humans, bats, whales, seals and songbirds vastly differ from each other. Humans and birds, for example, are separated by some 300 million years of evolution. But scientists studying how these animals ...
Evolution
Feb 29, 2024
0
280
From the excitable sheep dog to the aloof Shiba Inu, and all breeds in between, dogs have unique and diverse behavioral traits. By analyzing DNA samples from over 200 dog breeds along with nearly 50,000 pet-owner surveys, ...
Molecular & Computational biology
Dec 8, 2022
0
109
Mice lacking the fat hormone leptin or the ability to respond to it become morbidly obese and severely diabetic—not to mention downright sluggish. Now, a new study in the June Cell Metabolism shows that blood sugar control ...
Cell & Microbiology
Jun 2, 2009
0
0
Mapping the billions of connections in the brain is a grand challenge in neuroscience. The current method for mapping interconnected brain cells involves the use of room-size microscopes known as transmission electron microscopes ...
Other
Mar 31, 2009
0
0
An international team of researchers, studying macaque brains, have mapped out neurotransmitter receptors, revealing a potential role in distinguishing internal thoughts and emotions from those generated by external influences. ...
Molecular & Computational biology
Jun 19, 2023
0
104
Humans, fish and frogs share neural circuits responsible for a diversity of social behavior, from flashy mating displays to aggression and monogamy, that have existed for more than 450 million years, biologists at The University ...
Other
May 31, 2012
0
0
