Ssthisto is, in fact, a semi-aquatic beastie, as at home in fresh water as on land. In many ways, this is where I am most at home – below the surface.
Ahhh, so now we know what it is that Ssthisto’s so interested in… a rather large, somewhat skatelike fish.
Now, this is fresh water – an inland sea. Onissarle wanted me to put an octopus in, but they’re so quintessentially marine that although it would have been fun to draw, it would have made this even more “ocean” than it already is.
Ssthisto’s short, strong wings make for effective paddles, the feet and foreclaws are very slightly webbed, and efficient lungs can take dissolved oxygen from water as well as from air.