Sweat bees can change color. When the air is dry, they look blue-green. When it gets humid, they turn copper-green. This is like a mood ring. Scientists studied these bees. They put the bees in dry and wet air. The bees changed color each time. The color change happens because of moisture. Moisture makes the bees' outer shell swell. This changes how light bounces off them. The bees reflect different colors. Many other insects might do this too. Scientists want to learn more. They say we should study animals in their natural homes. That way we see their true colors.

A cow named Veronika surprised scientists. She learned to use a brush as a tool. Veronika is a Brown Swiss cow. She lives on a farm in Austria. She uses a deck brush to scratch hard-to-reach body parts. This is the first time scientists saw a cow use a tool. Cows usually rub against trees or rocks. But Veronika picks up the brush with her tongue. She moves it to the right spot. She uses the brush end for tough skin. She uses the handle for soft spots like her belly. Scientists say this is very smart. They thought only chimpanzees could do this. Veronika shows that cows can be clever too.

A hero rat named Magawa now has a big statue in Cambodia. The statue is seven feet tall. It was shown to people on April 3, 2026. Magawa was a special rat. He helped find hidden landmines. Landmines are bombs left in the ground from old wars. Magawa sniffed them out. This saved many lives. He worked for five years. He found over 100 landmines. He cleared a huge area of land. In 2020, he got a tiny gold medal. He retired in 2021. He died in 2022 when he was eight years old. Magawa was an African giant pouched rat. These rats are good at finding landmines. They have a very sharp sense of smell. They are light, so they do not set off the bombs. One rat can check a big area in just 20 minutes. A human would need four days to do the same job. Landmines are still a problem in Cambodia. They make it hard for people to farm, build homes, or walk to school. But thanks to hero rats like Magawa, over 120,000 landmines have been removed. Now those areas are safe to use again.