<human>:  What's the difference between an IPA and a Pale Ale?
<bot>: The main difference between an IPA (India Pale Ale) and a Pale Ale is the hops used in their brewing. An IPA typically has a robust hop content compared to a Pale Ale, which often gives it a more intense, bitter flavour. IPA's also tend to be higher in ABV (alcohol by volume) than a Pale Ale.