Researchers have just defined the reproduction cycle of the Spanish Lynx. Experts have used a method of indirect analysis based on determining the sexual hormones concentration -- estrogen, ...

Butterflies (Papilionoidea) come in a remarkable variety of colors and patterns, from the orange majesty of the monarch to the lustrous red and blue of the peacock butterfly, but all butterflies ...

Besides obscuring the stars, light pollution can also disrupt the reproduction of light-sensitive animals. Scientists have shown that light pollution can override the natural reproductive cycle of ...

When exactly is a rhino offspring born? How long does the birth actually take? Does parturition proceed normally? Answers to these and similar questions are difficult for experts in zoological gardens ...

While most of us know baby horses are adorable, the majority of people don’t realize the process involved in equine reproduction. Many unique and innovative factors are at play in the way horses breed ...

Objective: Many transitional societies currently face both extremes of nutritional status, undernutrition and overnutrition. Women of reproductive age are at high risk of these conditions. The purpose ...

LITTLE is known about the reproduction cycle of mumps virus. This seems strange, as some of the techniques available for influenza virus should be applicable to this virus, which is in many ways ...

The menstrual cycle is an approximately 28 day cycle that prepares the female body for pregnancy. Hormone levels change during the cycle. Controlled by chemical signals called hormones, the menstrual ...

"The natural light/dark cycle allows living organisms to time a variety of behavioural and physiological rhythms, including migration, accumulation of reserves, dormancy and reproduction" explains ...