Each of you, I am sure, has
already known what whales are. They are animals, especially kind of mammals,
who are living in the sea. Nowadays, there some bio acousticians or acoustic
biology are having research about whales. Bio acousticians are scientists who
are studying animal sounds. In this case we talk about whales sounds. They are
seeking what those sounds mean and how exactly they use it to communicate each
other.
A doctor, named Clark, is researching how whales use
their sounds to communicate, navigate, or even survive in the ocean. There are
many different kinds of sounds that whales make. It can be low rumbling, or
high squeaks. Some species sounds almost like birds.
There are
also some amazing facts about whales’ sounds. Male humpback whales can sing
songs that can last thirty minutes. What a very long time. Each year, humpback
in the same group sings the same songs. And then next year, somewhat the songs
have changed into another one, but still all the whales in the group sing it.
There are also bowhead whales. They can imitate sounds such as ice cracking.
Dr. Clark
found that male whales sing a song to attract females while intimidate other
males. Dr. Clark also uses his knowledge about whales’ sounds to count how many
they are. Also he can tell what species a whale is only by looking at the
spectrograms.
Whales
themselves use sounds not only to communicate each other but also to find out
about their environment just like bats do.
Unfortunately,
with all this knowledge and all of this high technology, Dr. Clark still does
not know how exactly whales make sounds. How the sounds are created is just one
of the many questions that need to be answered about whales.
From the
explanation above, I realize what a very clever creature human is. They can
create such technology to find anything they are wondering about. I also
realize how amazing God’s creatures are. However, not all of the secrets of
nature are that easy to find. Still, there are many things to find out.
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