They first appeared around 240 million to 230 million years ago in the Triassic Period, and went extinct around 66 million years ago, at the end of the Cretaceous Period, when a massive asteroid ...

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 ...

Landscape photographers favor low ISOs so they can retain as much detail as possible and middling to narrow apertures so they can capture a large depth of field without unwanted diffraction. As such, ...

He currently works as a gastroenterologist and hepatologist at Manhattan Gastroenterology. Period poops are changes in your bowel movements or stool that happen just before or during menstruation.

A Cretaceous Period bird called Vegavis iaai dives for fish in the shallow ... Antarctica at the time was not the desolate land of snow and ice that it is today, but rather a forested landscape with a ...

These specimens demonstrate the convergent evolution of highly developed simple eyes in at least two additional lineages of lacewings, showcasing the enormous diversity of lacewing larvae in the ...

Jake Rosenberg/Courtesy Netflix Meghan Markle says she and Prince Harry are in a “honeymoon period” again as she reignites her creative energy. In an intimate interview with PEOPLE in this ...

The Hirschfeld Krater, Ancient Greece, mid-8th century BC, from the late Geometric period, depicting ekphora, the act of carrying a body to its grave. National Archaeological Museum, Athens. Credit: ...