A newly described archosaur that lived 240 million years ago in what is now Tanzania had "'powerful jaws and large knife-like teeth."
Ancient trees, some close to 1,000 years old, may have a big impact on the forests where they grow.
The COVID-19 pandemic is one of the primary reasons for the recent upward trajectory of gas prices. Here's how.
The device will now be tested in a large-scale trial.