Whale has used 52 Hz to call to another Whale for many years.
Thailand
Drama
6 minutes
2017
Methee Samantong

2017
0.0

2007
7.2

1968
6.0

2007
6.4

2007
6.3

2006
6.9

2007
6.0

2001
7.3

2014
5.8

2003
8.2

2000
7.0

1963
7.6

2022
6.6

2003
7.4

1977
2.3

2019
4.8

2011
5.3

2007
5.5

1981
3.6

1999
8.0