Life
- Health & Medicine
Explainer: What are Antibodies?
Antibodies are one of the major players in the immune system’s attack against germs. Learn what they are, what they do and how they keep us healthy.
- Genetics
New COVID-19 vaccines show promise in people
Early data from human trials show that several candidate COVID-19 vaccines produce virus-inactivating antibodies and immune cells that fight the virus.
- Fossils
These crocodile ancestors lived a two-legged life
A set of 106-million year old footprints show a crocodile relative appears to have walked on two legs.
- Climate
Let’s learn about coral reefs
Coral reefs are home to many important species. But climate change is stressing corals to the max.
- Animals
What you need to know about ‘murder hornets’
Two new specimens of the world’s largest hornet have just turned up in the United States. Here’s what to make of them and other alien-hornet invaders.
- Animals
Pooping ducks can shed the live eggs of fish
Some carp eggs survived and even hatched after being pooped by a duck. This may help explain how invasive fish reach isolated waterways.
- Brain
Explainer: How our eyes make sense of light
It takes a lot for images before the eyes to be 'seen.' It starts by special cells sensing the light, then signals relaying those data to the brain.
- Animals
Tube-dwelling sea creatures may be oldest known parasites
A fossil bed of clam-like animals from a half-billion years ago is covered in tube-dwelling organisms. These suggest the tube dwellers were parasites, scientists now report.
- Agriculture
Scientists Say: Prairie
Prairies are flat, fertile grasslands in North America. They are their own unique ecosystem.
- Fossils
Fossil stomach reveals a dinosaur’s last meal
A rare fossilized stomach reveals a dino’s dining preferences. It also provides clues to the ecosystem in which the reptile lived.
- Animals
Bumblebees may bite leaves to spur plant blooming
In a pollen shortage, some bees nick holes in tomato leaves. This can speed up flowering and pollen production by weeks.
- Animals
Let’s learn about bioluminescence
Some animals, bacteria and algae produce their own light. This bioluminescence can attract mates or protect from predators.
