Fossil shark teeth are abundant and can date the past in a unique way
Remarkably, fossil shark teeth are also incredibly abundant. Sharks ruled the earth’s oceans for 400 million years, and every individual grows and sheds thousands of teeth in their lifetime.
Why Does Trump Threaten America’s Allies? Hint: It Starts in 1919.
Historians instead pulled out a category that has rarely been used to describe anyone on the right for 75 years. Noting Trump ...
Rubio Heads to Panama, With Canal in His Sights
On his first trip as secretary of state, Marco Rubio will also visit four other Latin American countries and press ...
Why the Panama Canal matters
Secretary of State Marco Rubio is visiting Panama in his first international trip. Here’s what to know about the Panama Canal ...
'It cost us tears and blood':Trump’s Panama Canal threat stirs up memories of US imperialist past
The aggressive rhetoric of US President Donald Trump has shocked Panamanians, who see the waterway as a source of enormous ...