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International travelers must be vaccinated, test negative, be coming from certain countries, quarantine and heed restrictions in public.

The German cockroach evolved to live only in human environments. This roach is very good at adapting to pest control methods — even if it means changing its mating rituals.

The former president has insulated himself with his party, having sold its members over the past seven years on his baseless narrative of a deep-state conspiracy against him.

Simulations of two devastating earthquakes didn't seem to damage a high-rise timber building on UC San Diego’s shake table.

Critics point to many red flags that had surrounded Silicon Valley Bank, including its rapid growth since the pandemic.

Communities from Houston to New Orleans opened cooling centers to bring relief as steamy hot temperatures settled across a broad swath of the U.S. South on Saturday.

Inflation, the curse of our pocketbooks and the Federal Reserve, has hit almost every good in the U.S. But the price of a beloved toy has managed to hover around $1 — for more than 50 years.

Beekeepers lost nearly half of their honeybee colonies last year. Without bees, farmers can't grow the fruits and plants that feed us. So farmers are working harder to get their crops pollinated.

California's year of endless storms has seeded superblooms of wildflowers and provided a boost to some of the state's endangered ecosystems.

The beaches in San Diego are typically packed on Memorial Day, but this year there was some extra room on the sand.