Animals
What biologists call a species is becoming more than just a name
The tree of life — evolution — has been reshaping how scientists name and classify organisms. Some want naming to reflect evolutionary groups even more.
Word of the Week
Earth
Scientists Say: Magma and lava
The word magma refers to molten rock deep inside Earth. That rock is called lava when it reaches Earth’s surface.
Explainers
Genetics
Explainer: What is RNA?
A partner to DNA, cells use this molecule to translate the instructions for making all of the many proteins that your body needs to function.
Analyze This!
Animals
Analyze This: Some female hummingbirds go undercover
Some female white-necked jacobin hummingbirds boast bright blue colors similar to males. That may help females blend in to avoid attacks.
What's Hot
The Coronavirus Pandemic
Watch This
A giant tortoise is caught hunting and eating a baby bird
New video captures the first recorded instance of a tortoise hunting another animal.
