People infected with the delta variant of the novel coronavirus may be carrying more than a thousand times more virus particles, according to an early new study.
The delta variant now makes up 83% of new U.S. cases, Dr. Rochelle Walensky, the director of the Centers for Disease Control and Prevention said on Tuesday (July 20).
People who are fully vaccinated against COVID-19 in the U.S. are strongly protected against the delta variant of the coronavirus, and do not need booster shots yet, according to experts.
An injured baby elephant that was abandoned by its herd in China has been rescued by a local animal rescue group, according to recent news reports.
Poop transplants may have helped two patients with risk factors avoid severe COVID-19, a new case report suggests.
Between Jan. 1 and July 2, 841 manatees died near and off the coast of Florida, a record-breaking number.
The Johnson & Johnson COVID-19 vaccine is highly effective against the highly transmissible delta variant, the company announced.
Parts of the southern U.S. are seeing off-season spikes in a respiratory virus called RSV, public health experts warn.
The world's best free divers can survive brain oxygen levels lower than those found in seals, according to a new study.
The mRNA vaccines will likely provide protection against the coronavirus for years if it doesn't evolve significantly, a small new study suggests.
A highly transmissible SARS-CoV-2 variant called "delta" has spread to nearly 100 countries around the world, including to the U.S., where it's likely to soon become the dominant variant.
Most major geological events in Earth's recent history have clustered in 27.5-million-year intervals — a pattern that scientists are now calling the "pulse of the Earth."
Scientists have figured out a way to convert plastic waste into vanilla flavoring with genetically engineered bacteria, according to a new study.
Supertasters may be less likely to become infected with, or become severely ill from COVID-19, a new study finds.
The tiny caterpillars have thin poisonous hairs that can cause poison-ivy-like rashes and breathing problems in some people.
Long-term storage on the International Space Station didn't cause DNA damage to freeze-dried mouse sperm.
Your friends are on average more popular than you are, according to a phenomenon known as the "friendship paradox." But it turns out, there's some nuance to that.
The tiny clay impression dates back 7,000 years and was likely used to seal and sign deliveries, as well as to keep storerooms closed, according to a new study.
If all the circulating SARS-CoV-2 particles were gathered together into one place, they would weigh somewhere between the weight of an apple and that of a young toddler.
About 90% of sharks disappeared from the ancient oceans in less than 100,000 years, but it's unknown why.
A burning container ship dumped tons of plastic debris onto Sri Lanka's beaches, prompting a widespread environmental disaster.
The 2021 Atlantic hurricane season has officially begun, and it's expected to bring a higher-than-average number of storms in the months ahead.
A giant tortoise in the Galápagos Islands that was thought to have gone extinct over a century ago just came out of hiding.