Translation of piranha in Spanish

The first day in a new place is always a little strange. One has to get used to the new environment. I believe that the more someone tries to adapt the faster he gets used to new spots and new people.
However, the option of creating new lessons with multiple answers is now widely used by our users (teachers and students). However, we believe rather in context and single answers ant not multiple options.
In the end we decided just to take the picture and place it as the logo. It seems nice and it may make the user more curious, so that he will go to your page. Tell me if you do not agree with me!