A unique parasitic wasp from 99 million years ago, preserved in Cretaceous period amber, featured a Venus flytrap-like ...

Modern-day parasitoids in the same superfamily—Chrysidoidea—include cuckoo wasps (which, as their name suggests, lay their eggs in the nests of their hosts) and bethylid wasps (which paralyze their ...

However, the hind wings aren’t its only striking features. S. charybdis appears to have evolved a unique, three-flapped ...

The millipede family Siphonorhinidae, of which the new species is an ancient ancestor, still lives today and includes four ...

Spring arrives, and with it, the magnolias. Their enormous pink and white blooms unfurl in many parts of the world, but if you look closely at them, you might see a beetle land on the flowers — not a ...

The egg must experience fertilization within 24 hours, or it may begin to disintegrate, leading to menstruation or period-like bleeding. Sperm must enter your vaginal canal and travel through your ...

Dr. Anju Goel, MD, MPH, is a public health consultant and physician with more than 10 years of experience in the California public health system. Heavy periods can cause major blood loss and, in ...

as that group of dinosaurs became far more prominent in the later Cretaceous period,” researchers said. “Analysis of the bone structure indicates that the animal, which would have been roughly ...

There is a huge selection of period products to choose from, ranging from disposable tampons to reusable menstrual cups (Credit: Getty Images) Twenty billion disposable menstrual products are ...

Brown discharge before a period could be implantation bleeding, which indicates pregnancy, or it may be due to perimenopause. In some cases, brown discharge may indicate an underlying condition.