The warm summer weather has meant the number of adder bites have gone up.
Adders are the only venomous snakes in the UK and in most areas it's very rare to find them.
But with the rising temperatures, the snakes have been coming out more and the number of bites being reported has gone up.
Experts at London Zoo say the rise in bites isn't something we should worry about but if you do get bitten, you should go to hospital straight away.
Check out Leah's report to find out more...