The trend is a result of women deciding to have children later in life and the use of medically assisted reproduction methods

In summer months above the North and South Poles, glowing clouds occasionally form naturally at sunset under the right conditions

As of last Wednesday, at least 3,500 sea turtles have been rescued from freezing waters in the midst record-breaking winter storm

In one reef, three million sea cucumbers released 64,000 metric tons of nutrient-packed poo back into the ecosystem

The surge of hungry four-legged visitors to Belushya Guba is part of a larger trend

"Fascinating, Captain"

The tongues of bird-like dinosaurs and pterosaurs, however, may have been more mobile

It's curtains for the NASA mission's close relationship with the satellite

In the 1960s, a vaccine for chlamydia made patients more susceptible to chlamydia. Now scientists know why