Siamese fighting fish, also known as Betta Splendens, have a special respiratory organ that allows them to breath air directly from the surface.
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Siamese fighting fish must be kept isolated because they will fight, immediately, often to the death. In an experiment, 2
fish were dropped in a lake. Would this be enough space? Were these tiny fish interested in exploring?
No, they immediately started fighting.
The harmless whale shark holds the title of largest fish, with the record being a 59 footer captured in Thailand in 1919.
In the past few decades 90% of the big fish in the oceans have been eaten, or otherwise disposed of.
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