How can we save our coral reefs, and why are they so important? Marine Biologist David Smith joins us this week to tell us exactly why and how we can help! 

We answer your questions on why we have such wrinkly fingers when we are in the bath too long.

And we are joined by Professor Hallux and Nurse Nanobot for the last time this week, and it's all about the first aid kit and how this can help you in your home.

Did you know the dragonfly was so deadly? Its actually one of the deadliest creatures in the world, and we find out just why in this weeks Dangerous Dan! 

Of course we are also joined by the smarted school in the universe, Deep Space High, where Pulsar is joined by some space experts to answer your questions!