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Why don’t sunflowers fall over?

With huge heads on spindly stalks, how do sunflowers defy gravity to stay standing?

• 26 mins

What's the fairest voting system?

Is there a perfect way to elect politicians?

• 32 mins

Why do my armpits smell?

Deodorant hasn’t been around forever, so is there any evolutionary reason for body odour?

• 26 mins

Why do languages fade from us?

Can learning multiple languages make us forget our native tongue?

• 26 mins

Why do some mushrooms glow?

We explore the mysterious phenomenon of bioluminescence

• 29 mins

Why is my house getting sunnier?

A mysterious shift in sunshine through one listener’s window requires investigation

• 30 mins

What does my voice say about me?

What shapes the sound of your voice? And is everybody’s voice unique?

• 31 mins

Why can't my dog live as long as me?

And how do some animals tackle the ageing process head on?

• 28 mins

Can I improve my sense of direction?

Why some people get lost while others have a great sense of where they are

• 29 mins

Why am I good at jigsaw puzzles?

What skills do you need to complete a jigsaw puzzle? And why do we enjoy them?

• 32 mins

Why does pain sometimes feel good?

What makes people seek out unpleasant or painful sensations, like eating chilli?

• 29 mins

Will the Earth ever lose its Moon?

Anand Jagatia is joined by a panel of experts to answer listener questions about the Moon

• 26 mins