Can you replace the question mark with a number?
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 588
The first user who solved this task is H Tav.
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Smallest vertebrateIn 2006, the discovery of the world's smallest vertebrate - the Paedocypris progenetica fish - was published in the Proceedings of the Royal Society of London, Series B. A tiny member of the carp family, the transparent fish was discovered in the highly acidic peat swamps of the Indonesian island of Sumatra. Mature females are only 7.9mm (3/10 in) in length; the males measure up to 8.6mm. The dark tea-coloured swamp waters in which they live have a pH of 3, which is 100 times more acidic than rainwater. |