Playing Space Invaders with your mind, small testes and inherited faces

This week on Mr Science, we are tackling some science news issues:A 14 year old boy has learnt to play Space Invaders using only his mind - not his hands! His brain was hooked up to a computer and he was able to complete a number of levels with only his mind. This has implications for controlling biomechanical devices such as prosthetic limbs.Scientists have found that you can either be tough and good looking, or you can have lots of sperm, but not both. By examining a species of Dung Beetle, it was found that many have large horns to attract mates, and many have large testes to impregnate them, but none had both. It just goes to show that those of us with fast cars and loud sound systems are just compensating for something else.Israeli scientists have found that facial expressions are inhereted from your parents, and aren't just learnt through minicry. EnjoyMarcwww.mrscienceshow.com