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Animals can feel joy. Here’s how scientists might study it

Can animals experience joy? Well, of course — just look at my tuxedo cat, Tango. Every night, he waits atop the bed for his brother Teddy, a fat orange tabby that resembles…

Analyze This: How many insects are in the air?

Mayflies mate in mid-air. Monarch butterflies make cross-continental flights. And dragonflies hunt as they soar. But despite how much insect activity happens in the air, scientists haven’t had a clear…

Why do treehoppers have such strange body shapes?

Abstract Some animals can sense tiny electric fields around them. We call this electroreception. Sharks use it underwater. Using it in the air is harder, but some insects can do…

A new shield could guard AI agents against cyberattacks

Kevin Lu, 17, is working on ways to protect AI from sneak attacks meant to steal sensitive data or do other harm. Today, people are using AI agents to perform…

Scientists get smart about farts with new underwear sensor

Everybody farts. The question is, how often? And how much gas is too much gas to pass? Science is now starting to answer that question. All it took was inventing…

Do multiple universes exist?

The Marvel Cinematic Universe really should be called the Marvel Cinematic Multiverse. In the films, alternate realities can be created and destroyed. Characters can also hop between them. This has…

Scientists Say: Observable universe

Observable universe (noun, “ub-SERV-uh-bul YOO-nih-vers”) The observable universe is a huge bubble-shaped region of space around Earth. It contains all the matter and energy that we could, in theory, observe…

Light pollution could be supercharging your pollen allergies

Nearly one in four U.S. adults have seasonal allergies. So do one in five kids. Most of those allergies are to mold spores or pollen from ragweed, grasses and trees.…

Looking for LUCA, everyone’s shared ancestor

Scientists want to identify your earliest ancestor. And to do that, they have to look back in time. Way, way back. Let’s climb up your family tree. The first people…

Hurricane Katrina shaped this coastal ecologist’s life and work

Being from New Orleans, La., Elliott White Jr. has a clear understanding of the importance of healthy wetland ecosystems. He was 12 when Hurricane Katrina struck the Louisiana coast, which is home…