Emperor penguins have a few hidden tricks to stay warm, like blood vessels in the nose arranged so they can regain most of the heat that would be lost by breathing.
Think of it like a ladder. You might not be at the top right now, but each new thing you learn takes you a step closer and means that your parents can relax the rules a little.
It’s true that here on Earth, if you want to burn something you need oxygen. But the Sun is different. It is not burning with the same kind of flame you would have on Earth if you burned a candle.
Writing has only been a part of the human story for the last 5,000 years. In comparison, humans began to communicate using speech some 50,000 years ago.
The short answer is that leeches need blood to grow and reproduce. But it’s in their interests to do it carefully, without causing too much pain, and in spots that are hard to find.
Dinosaurs ruled the Earth for about 180 million years. But around 66 million years ago, a huge rock from outer space (called an asteroid) smashed into the Earth. Then things got worse for dinosaurs.
We know very little about the deep sea and how its inhabitants, including anglerfish, will respond to change. In fact, more people have walked on the Moon than have been to the bottom of the ocean.
I have been interested in the science of fire and fireworks for a long time, and can tell you there is a lot happening in the very short time it takes to light a match.