Giant African pouched rat. Credit: Cornell University Female giant African pouched rats, used for sniffing out landmines and detecting tuberculosis, can undergo astounding reproductive organ…
Posts published in “Reproductive Biology”
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A new study that centered on the swimming behavior of sperm cells is the first to establish a direct effect of mutation on sperm behavior.…
Natural and synthetic embryos side by side show comparable brain and heart formation. Credit: Amadei and Handford Scientists from the University of Cambridge have created…
Previous studies found that mothers of twins are more fertile. However, new research shows they are not. Is it true that women who have twins…
Image showing artificial ovary, where in vitro-generated female germ cells (magenta) enter meiosis (yellow cells) to become oocytes with help from supporting cells (cyan). This…
Artistic reconstruction of mating position in Olenoides serratus. Credit: Holly Sullivan Fossils can tell scientists a lot about an animal such as their morphology, their…
A discovery that blocks the normal transition of semen from a thick gel to a liquid shows promise for development of a new form of…
Egg and sperm cell size evolved from competition. Limited resources drove gametes to differ vastly in size and number. In most living animals, egg cells…
Pleodorina algae float in a water sample under a light microscope. Credit: © Hisayoshi Nozaki, CC BY 4.0 Researchers on quest to understand how different…
The species of turtle involved in the study is Apalone spinifera, a species of freshwater turtles native to North America. But the researchers say their…
Researchers from UMD found that the same gene for expressing a red fluorescent protein is always expressed (ON), when it is inherited from the mother,…
Sarah Nyquist, a PhD student in MIT’s Computational and Systems Biology program, applies computational methods to understudied areas of reproductive health, such as the cellular…
A large cohort study drawn from the national IVF registry of France, which included almost 70,000 pregnancies delivered after 22 weeks gestation between 2013 and…
A mating pair of Callosobruchus maculatus attempting to disengage (female left, male right). Credit: Mareike Koppik A few males are enough to fertilize all the…
Sperm size varies dramatically among different animal species. But why is sperm size so variable when they share the same job — to fertilize eggs?…
Male infertility affects more than 20 million men globally and is a contributing cause to around 50% of infertility in couples. Frequently, male infertility is…
A baby bamboo shark born via artificial insemination. Credit: Photo by Jay Harvey, Aquarium of the Pacific It’s a tough time to be a shark.…
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,…
Left is stem cell embryo model; right is nature human embryo. Credit: University of Exeter Exeter scientists have discovered a simple, efficient way to recreate…
The blog “Ladyplanet. Natürlich Frau sein” is quite certain: “Our cycle is linked to that of the moon. The most obvious connection is the length…