Re: what is the mass, density, and volume of the average seahorse?

Dear anonymous,

As it's only mass, density and volume you require, it seems you must be more interested in physics than biology.

The several species of Hippocampus to which you refer vary from tiny miniatures to larger 14" (35cm) individuals. The dwarfs at 0.6" (or 1.3cm) can hardly swim, moving very slowly in coral reefs. The weight is 450g or 1lb maximum, normally, while the little ones will weigh a tiny fraction of that -- say 15g.

I make the density to be 450/350 or 1.3 g/ml!!! The internet has more information if you look properly, but get back to us if you have any problems.