Newly Discovered Sperm Movement Could Help Treat Male Infertility
University of Toledo research shows the centriole’s role in sperm evolved from a shock absorber to a transmission system. Scientists at The University of Toledo…
Sperm
Sperm Evolution Becomes Supercharged Only When They Swim Inside Females
Sperm size varies dramatically among different animal species. But why is sperm size so variable when they share the same job — to fertilize eggs?…
Extinction of the Human Species? Harvard Researchers Say Not to Panic Over Declining Sperm Counts
An alternative explanation of recent findings of declining sperm counts: normal, non-pathological variation. A new study from the Harvard GenderSci Lab in the journal Human Fertility,…
Some Sperms Poison Their Competitors: A Genetic Factor Helps Sperm Cells Outcompete Their Peers
Competition among sperm cells is fierce – they all want to reach the egg cell first to fertilize it. A research team from Berlin now…
How to Quickly and Easily Find Mutated Sperm? Just Go FISH
A new test quickly and easily identifies when sperm are carrying chromosomal mutations, and could be applied for men hoping to have children. Chemotherapy and…
Norwegian Researchers Are Collecting Sperm From COVID-19 Patients – Here’s Why
How does Covid-19 affect sperm and thus the next generation’s immune system? Researchers from the University of Bergen are collecting sperm to find the answer….
Heat Stress Damages Sperm and Fertility – Now Scientists Know Why
Project using roundworms uncovers a mechanism that leads to male infertility caused by high temperatures. University of Oregon biologists have used the model organism Caenorhabditis…
Giant 100 Million Year Old Sperm Cells Discovered – The Oldest Known Sperm Cells
In another fascinating snapshot from deep time, an international team of paleontologists has reported the discovery of specimens of a minuscule crustacean that dates back…
Sperm-Driven Micromotor for Targeted Drug Delivery
Delivering drugs specifically to cancer cells is one approach researchers are taking to minimize treatment side effects. Stem cells, bacteria and other carriers have been…
Lens-Free System Shows Spiraling Swimming Pattern of Human Sperm
A new three-dimensional imaging technique has shown the spiraling movements that human sperm accomplishes while swimming. Previously, these movements had only been inferred from two-dimensional…
Researchers Study Regulatory Gene’s Role in Sperm Quality Control
Researchers at Yale University have discovered how the regulatory gene, p53, oversees quality control in the production of sperm and possibly other cells with damaged…
UNC Researchers Reduce Sperm Count Using Ultrasound
Using modern ultrasound equipment, researchers at University of North Carolina’s School of Medicine effectively reduced male sperm counts in laboratory rat tests. The idea of…
Researchers Show Sperm Production Has Health Implications
According to Dr. Damian Dowling of Monash University’s School of Biological Sciences and Professor Leigh Simmons of the University of Western Australia, reproduction may be…
Naked Mole Rats Make Slow Sperm
Naked Mole Rats are all teeth and skin. They are fairly ugly by our usual standards and as it turns out, so is their sperm,…