
Scientists in China have invented tiny robot fish that gobble up rubbish in the water!
The little robots measure just 1.3 centimetres in length – that’s just a little bit bigger than a button.
But despite their small size, they’re fast! They can travel up to 10 centimetres in under 4 seconds.
Their job is to absorb miniscule bits of plastic that float in water – known as microplastics















