Always keep shoaling piranhas in groups, like young S. gouldingi and S. manueli. Species like S. hollandi, S. maculatus, S. serrulatus or S. spilopleura should be kept in at least threes. Keep S.

Perhaps Australia, with infamous snakes like the inland taipan (Oxyuranus microlepidotus), or maybe Brazil, home to dreaded creatures like the yellow scorpion (Tityus serrulatus). Europe ...

Piranha expert Frank Magallanes said: "The fish in the photo above is not "S. gibbus". By its size, it seems to fit S. eigenmanni or S. serrulatus a complicated group of fishes that fall into several ...