Do human embryos have extra muscles in their hands?
Human embryos have more muscles than adult humans, new microscope images cataloging early development show. For example, at seven weeks gestation, embryonic hands have about…
Human embryos have more muscles than adult humans, new microscope images cataloging early development show. For example, at seven weeks gestation, embryonic hands have about…
A sleeping rat may appear peaceful, but inside its immobile furry head, a war is raging. Two types of brain waves battle over whether the…
Sudden blood sugar swings can disrupt sleep, the relationship of food to sleep becomes even more confusing when there are signs of Alzheimer’s disease, a…
As the sun moves across the sky, sunflowers continually orient themselves to absorb the most light; now a type of human-made material can do that,…
Every 20 seconds, a wave of fresh cerebrospinal fluid reaches the sleeping brain. These slow, rhythmic bursts, described for the first time, may help explain…
Refraction is the change of direction and slowness of light that a wave experiences when passing from one medium to another, whether liquid or gaseous,…
The concept of static equilibrium, more precisely static mechanical equilibrium, is used in physics to describe a stationary state in which the relative position of…
A recently discovered type of mitochondrial self-destruction may make some brain cells vulnerable to ALS, also known as Lou Gehrig’s disease. In mice genetically engineered…
A lab-grown liver substitute may better predict poor drug responses than animal tests. A human liver chip — liver cells grown on a membrane along…
Growing up is hard to do, especially for baby planets. Now, scientists may have discovered the solution to a puzzle about protoplanetary growing pains. An…
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