Scientists record more than 80 incidences of fish eating semi-aquatic spiders in freshwater streams, rivers, lakes, ponds and swamps.
An eco-worker from London received a shock when a huge spider crawled out of her backpack when she returned from a trip to Cameroon.
A terrified family had to leave their home for three days after finding the spiders - which are feared to have been the world's most toxic.
Ricki Whitmore says the spiders started running towards him before biting his leg. Speaking to the Daily Star he said:
There was a really sharp pain and then my leg started to throb. I managed to get home, but by the time I arrived my thigh had swollen to twice its normal size.
There was a really sharp pain and then my leg started to throb.
Ricki's wife Carrie added:
He looked terrible. He was pale, sweating and his leg was killing him. Even our son's Stanley, 11 and little Ricki, two, could tell something was wrong.
A man from east London has reportedly been attacked by a venomous spider, known as a 'false widow'. Ricki Whitmore claims the creature bit him, causing his leg to swell. He ended up in hospital on an antibiotic drip. Speaking to the Daily Star he said:
I found a nest of spiders' in a school I was renovating. They were quite big, a purplish brown colour with strange markings on their back.
I'd never seen anything like it. It was quite creepy. I'd never kill a spider but I needed access to the corner so I just swept them away.