【No. 0295】The Difference Between Dolphins and Whales
Oct 9, 2015 12:46
Both dolphins and whales are classified as infraorder Cetacea, Odontocetes, and there are no biological differences.
The difference between dolphins and whales is just their length of bodies.
Dolphins are small ones of Odontocetes, and whales are large ones of Odontocetes and all of other Cetacea.
The border of them is often defined as three to five meters.
By the way, the largest specie is: blue whale in Cetacea (also in all animals), sperm whale in Odontocetes, killer whale in dolphins.
The difference between dolphins and whales is just their length of bodies.
Dolphins are small ones of Odontocetes, and whales are large ones of Odontocetes and all of other Cetacea.
The border of them is often defined as three to five meters.
By the way, the largest specie is: blue whale in Cetacea (also in all animals), sperm whale in Odontocetes, killer whale in dolphins.
イルカとクジラの違い
イルカとクジラはどちらもクジラ目ハクジラ亜目に分類され、生物学的に差はあありません。
どのように呼び分けているかというと、体の大きさです。
イルカはハクジラ類のうち小型もので、クジラはハクジラ類のうち大型のものと、ヒゲクジラ類全てです。
イルカとクジラの境界は、3〜5 m とされることが多いです。
ちなみに体長が最も大きいのは、クジラ目ではシロナガスクジラ、ハクジラ亜目ではマッコウクジラ、イルカ類ではシャチです。
イルカとクジラはどちらもクジラ目ハクジラ亜目に分類され、生物学的に差はあありません。
どのように呼び分けているかというと、体の大きさです。
イルカはハクジラ類のうち小型もので、クジラはハクジラ類のうち大型のものと、ヒゲクジラ類全てです。
イルカとクジラの境界は、3〜5 m とされることが多いです。
ちなみに体長が最も大きいのは、クジラ目ではシロナガスクジラ、ハクジラ亜目ではマッコウクジラ、イルカ類ではシャチです。
Corrections (1)
No. 1 シャル❇️
- Dolphins are small ones of Odontocetes, and whales are large ones of Odontocetes and all of other Cetacea.
-
Dolphins are small ones of Odontocetes, and whales are large ones of Odontocetes and all of other Cetacea.
you can use 'smaller/larger species' as well.
I had no idea 'killer whales' come under dolphins ^^
Toru
Thank you very much always for correcting me! :D
I think many Japanese regard killer whales as a sort of dolphins, because both of them are often together in aquariums, and "シャチ(killer whale)" does't include the word "クジラ(whale)" in Japanese.
Thank you very much always for correcting me! :D
I think many Japanese regard killer whales as a sort of dolphins, because both of them are often together in aquariums, and "シャチ(killer whale)" does't include the word "クジラ(whale)" in Japanese.
シャル❇️
ahh yes. That's probably the reason. I remember seeing some videos in the past about some water acrobats performing with シャチ as well.
ahh yes. That's probably the reason. I remember seeing some videos in the past about some water acrobats performing with シャチ as well.