Human-sized penguins ruled waters after dinosaurs died
What waddled on land but swam supremely in subtropical seas more than 60 million years ago, after the dinosaurs were wiped out on sea...
Breathing? Thank volcanoes, tectonics and bacteria
New study points to one cause for several mysteries linked to breathable oxygen.
Earth's breathable atmosphere is key for life, and a new study suggests...
NASA’s Parker probe traces solar wind to its source on sun’s surface
A year ago, NASA’s Parker Solar Probe flew closer to the sun than any satellite in history, collecting a spectacular trove of data from...
Scientists discover world’s oldest comma shrimp
Scientists have discovered the world’s oldest “comma” shrimp, a tiny crustacean shaped like its punctuation namesake.
The 90-million-year-old creature fills in a major evolutionary gap...
Did modern humans cause Neanderthal extinction?
Neanderthal extinction could have occurred without environmental pressure or competition with modern humans, new study suggests.
Small populations, inbreeding, and random demographic fluctuations could have...
Unique sled dogs helped the Inuit thrive in the North American Arctic
Inuit sled dogs have changed little since people migrated to the North American Arctic across the Bering Strait from Siberia with them, according to...
What are lost continents and why are we discovering so many
For most people, continents are Earth’s seven main large landmasses.
But geoscientists have a different take on this. They look at the type of rock...
Scientists find sugars were delivered to Earth by meteorites
Researchers from Tohoku University, Hokkaido University, JAMSTEC, and NASA Goddard Space Flight Center investigated meteorites and found ribose and other sugars.
These sugars possessed distinct...
Legged snake fossils shed light on how snakes got their bite and lost their...
New fossils of an ancient legged snake, called Najash, shed light on the origin of the slithering reptiles.
The fossil discoveries published in Science Advances...
Scientists find the Nile river is about six times older than previously thought
Ancient Egyptians considered the Nile river to be the source of all life.
The steady northward path of the river has nourished the fertile valleys...