Whales can be divided into two big groups:

• Baleen whales
• Toothed whales
  

Whale families

Toothed whales

They have teeth and one blowhole.
            Killer whale (orca)
            Beluga
            Narwhals
            Sperm
            Beaked whales
            Dolphins

It is not the size of a whale what determines which whale is in each family.

It is the way they eat their food!