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Scientists have made a discovery about a 500 million–year-old fossil. A new study shows it was formed by an animal. It was one of the earliest creatures on Earth. The first fossil of this kind was described in 1947. The…
After a storm, look at the sky. You might see a rainbow. This beautiful arc of color forms when sunlight shines through water in the air. Usually, light from the sun looks white. But it’s really all the colors of…
Why does a leaf look green? Great question! It has to do with light and how humans see color. Light bounces off objects and into our eyes. In this case, the leaf is the object. The sun shines white light…
Scientists have discovered ancient dinosaur footprints. The tracks were found on the Isle of Skye, in Scotland. They are about 170 million years old. About 50 fossilized footprints have been found. “The more we look on the isle of Skye,…
People are using bioluminescent animals to solve problems. Take GARY and KATHY LUKER. They are scientists. They study cancer. Bioluminescence gives them information about the disease. This information would otherwise be invisible. In their work, the Lukers turn to glowing…
Glowing hot lava sputters from the peak. Chunks of rock shoot into the sky. The ground rumbles. The air is thick with ash and smoke. A volcano is erupting. A volcano is an opening in the Earth. Magma, or hot…
The Ring of Fire is a 25,000-mile-long belt around the Pacific Ocean. It is home to many volcanoes. In fact, three-quarters of the Earth’s volcanoes are here. That’s more than 450 volcanoes! The Ring of Fire sits along the outline…
"What's it like to be a dog?" Gregory Berns asks. He is a scientist. He studies how brains work. He says no one can know for sure. "But I think dogs experience things very much the way we do," he…
Mike Cranfield is a veterinarian, or vet. His patients are gorillas. One ape, Ijabo, stands out. When Ijabo was three days old, an exam showed he had a badly damaged leg. Cranfield had to remove the leg below the knee.…
To save its birds, New Zealand has a big plan to get rid of rats. New Zealand has a pest problem. The country has a plan to solve it. The country’s leaders want to get rid of rats and other…
