Bruce is a special parrot. He lives in New Zealand. He is missing half of his upper beak. But that does not stop him. Bruce is the top bird in his group. He wins every fight. He eats first. Other birds clean his feathers. Scientists are surprised. They thought a disabled animal could not be the leader. But Bruce proved them wrong. He fights in a smart way. He uses his lower beak like a spear. This helps him win. Bruce is also very calm. He is not stressed like other leaders. He knows he is the boss. Other birds give him space. Bruce shows that being different can be a good thing.

Have you ever heard a loud squeak from basketball shoes? That sound happens when players stop or turn quickly. Scientists now know why. They used high-speed cameras to watch shoes slide on a floor. The shoe's sole sticks and slips very fast. It slips in tiny bursts. These bursts happen about 4,800 times every second! Each burst makes a small wave in the air. This wave is a sound. The sound's pitch depends on how fast the bursts happen. That is why shoes make a clear squeak. The ridges on the shoe's bottom help make the sound regular. Without ridges, the sound would be messy. Scientists also found that the thickness of the shoe's sole changes the pitch. If the sole is thin, the pitch is higher. People cannot hear very high sounds. So, shoe makers could make silent shoes by making soles thin. But dogs can hear these high sounds. Your "silent" shoes might bother your pet! Scientists even used rubber blocks to play a song from Star Wars. They learned that Darth Vader would not be scary with squeaky shoes.

A 16-year-old scientist named Sophia Zeng studied how caffeine affects the brain. She found that caffeine might change how genes work in young brains. This could be bad for brain development.

Sophia first got curious because she and her mom reacted differently to tea. Her mom felt focused, but Sophia got headaches if she stopped drinking it.

Sophia did three experiments. First, she looked at old studies on mice. She found that caffeine changed which genes were active in the mice’s brains.

Next, she grew rat brain cells in dishes. She added different amounts of caffeine. After two days, she saw that more caffeine meant fewer brain cells and fewer connections between them.

Then, she studied young zebrafish. Fish that got more caffeine swam more and acted anxious. They also had less activity in four genes that help the brain grow.

Sophia’s work suggests that caffeine may harm young brains more than adult brains. She says kids and teens should be careful about how much caffeine they drink. It is in many drinks like soda, tea, and energy drinks.