Print
Through the oceans
Dolphins migrate each year
Some deep ocean fish migrate daily. They swim up to the surface to feed at night and then return to the depths by day. Dolphins migrate north and south each year. They navigate by using echolocation to recognise the shape of the seabed and the coastline – just like bats do in the air.
Even some lobsters migrate. The spiny lobster spends the summer in the warm coastal shallows of California, where it lays its eggs. In October, as the shallows get colder, it migrates towards the warmer waters of the deeper ocean. Hundreds walk in single file, clasping pincers to form a living chain of lobsters.
Last modified: 11 January 2005