Interesting fact of the day: The two largest fish known to us are in fact quite different in their maximum observed size.
The whale shark is generally considered the largest and their maximum size in tones is a little over 20 tons.
By comparison the basking shark is the second biggest but its max size only comes in at a little over 5 tones.
That would mean, by weight, the largest fish in the world is at its maximum 4x bigger thant he second biggest.
Interestingly, however, there isnt nearly as much disparity in their maximum length. The Whale Shark maxes out around 18 meters while the Basking Shark is around 14 meters.
@freemo @Marbleturtle Hey @Marbleturtle look at this
I have done quite a few SCUBA dives and can say even seeing a whale share takes quite a bit of effort... You can do 10 dives and see one maybe once or twice. Even if you see one good luck catching up. They look like they move slow but they are really booking it. Will take all your energy to keep up for even a short time.
Given that, and the fact that Is uspect they give birth too deep to be seen (we only observe them when they come up to feed) that is not particularly surprising.