What's the cause of the splitting headache we sometimes get when eating something...
Are CEOs more likely to be psychopaths than other people?
Why is guilt such a variable emotion?
Do female animals ever try to impress the males?
What's the science behind this condition?
Can our brains be stimulated to make us commit crimes?
Are there any two-timers in the animal kingdom?
How common is conflict with love rivals in the animal kingdom?
WARNING: Don't ship mantis shrimps in tupperware boxes.
And how do know the colours of planets?
What does the nose have to do with tasting?
Would your intestines grow back after some of them were removed?
From the soil surface or from the bottom of the pot?
What makes weeds so relentless?
What effect could declining bee populations have on plants?
Why do some plants eat animals when others get their energy from the sun?
If we could photosynthesise, Mark asks, how much green skin would we need to make enough energy to live our normal...
How do we know what to do?
Can little things eat bigger ones?
Can exposure to light change our body clock?
Is there anything we can do about it?
Biggest is not always best...
Meet the team of science experts answering your questions...
Just how giant IS a giant squid?