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Humans have used fire far longer than anyone realized

A cave in Africa seems to host the oldest known traces of humans using fire. Burnt remnants of animal bones hint that groups of Homo erectus used fires here as long…

How to lessen your pet’s impacts on the planet

While John Harvey was working as a veterinarian in Devon, England, his clinic looked for ways to lower its carbon footprint. They installed energy-efficient light bulbs. This got Harvey thinking:…

AI can be a helpful math tutor if used right — and harmful if not

Is it a good idea to use artificial intelligence (AI) for math help? Yes — and no. That’s based on the results of a new survey. AI can be a…

How can swimming be less of a drag?

Abstract It is important for animals to move around easily. It helps them avoid predators or catch a meal. But the ways animals move depend on the environment they live…

Surprise! Wax seems key in turning honeybee larvae into queens

Kids learn in grade school that honeybees “create” a new queen bee by feeding a larva royal jelly. A new study find that the young bee’s diet may be only…

Scientists Say: Phenology

Phenology (noun, “Fen-AW-luh-jee”) Phenology is a field of science. It studies the seasonal and environmental cues that trigger life-cycle changes in living things. Imagine a tree as winter turns to…

A new dino may be the culprit in an ancient murder mystery

The arm and shoulder bones of a gliding dinosaur might have just revealed the solution to a gruesome whodunit.  Since 2002, researchers have unearthed more than 100 prehistoric bird remains…

Explainer: What is ADHD?

School was difficult for Makayla Caliendo when she was young. She remembers staring out the window while her classmates were paying attention in class. Some clothes, tags and socks were…

Can living in a multilingual country slow down aging?

Abstract Have you heard about brain training? That might bring to mind crossword puzzles, Sudoku, or brain teasers. Learning new languages is another powerful way to stimulate the brain. Activities…

This microbe turns into a ‘Hulk’ that eats its own kind

A newly discovered microbe is like a mini version of the Hulk. This single-celled protist looks a bit like an insect. It normally grazes on bacteria and other microbes. But…