How long it took Madagascar’s mammals to emerge? 23 million years
In many ways, Madagascar is a biologist’s dream, a real-life experiment in how isolation on an island can spark evolution.
About 90% of the plants...
Compound extreme heat and drought will hit 90% of world population
The frequency of extreme compounding hazards is projected to intensify tenfold globally due to the combined effects of warming and decreases in terrestrial water storage.
MAYA people shopped at places like today’s supermarkets
More than 500 years ago in the midwestern Guatemalan highlands, Maya people bought and sold goods at markets.
Why was Roman concrete so durable?
The ancient Romans were masters of engineering, constructing vast networks of roads, aqueducts, ports, and massive buildings, whose remains have survived for two millennia.
Many...
Bering Land Bridge formed surprisingly late during last ice age
The Bering Land Bridge did not emerge until around 35,700 years ago, less than 10,000 years before the height of the last ice age.
Scientists find the oldest known projectile points in the Americas
Archaeologists have uncovered projectile points in Idaho that are thousands of years older than any previously found in the Americas.
This helps fill in the...
Early humans may have first walked upright in the trees
Human bipedalism – walking upright on two legs – may have evolved in trees, and not on the ground as previously thought, according to...
Scientists reveal the diets of early dinosaurs
The earliest dinosaurs included carnivorous, omnivorous and herbivorous species, according to a team of paleobiologists.
Oxygen could exist in Earth’s solid inner core, shows study
Oxygen can exist in the solid inner core, which provides key constraints for further understanding of the formation process and evolution history of the Earth's core.
Spinosaurus, the largest predatory dinosaur, wasn’t underwater hunter, shows study
Spinosaurus, the largest known predatory dinosaur to roam the Earth, was adapted for hunting along shorelines instead of venturing deep underwater.