Sperm whale chatter is so complex they have their own alphabet

What are sperm whales chatting about? (Picture: Getty)Sperm whales have the biggest brain on the planet and, it seems, they are putting it to good use.
Scientists have discovered that their communication may be much more complex than initially thought, and they can have a range of different conversations using their own ‘alphabet’ of clicks.Communication is important for the social animals to help make group decisions and coordinate joint tasks, such as foraging and rearing youn