- Dinosaurs were reptiles. They died out 65 million years ago and nobody knows why! Some people think that there are still dinosaurs left.
- Humans have a constant body temperature of 37ºC.
- Dogs can smell things about 40 times better than we can.
- The brain is the most important organ in our bodies. It controls the body and makes sure that it works properly.
- The circulatory system contains over 100 000km of blood vessels carrying blood.
If you want to know more, come and visit me soon...