Scientists visit the remote surface and undersea locations to study various species of whales in their natural habitat.
Narrator
1990
1896
1895
1919
2014
1980
1966
1950
2013
2005
2004
2003
1985
1998
1997
1996
1941
2018
2009
1972
2008
2002
2010
1975
2022
1999
2012
2023
2021