The most recent puzzle is the report that a set of Spanish researchers found this two-headed Atlantic Sawtail Catshark. They noticed the creature as an embryo in one shark’s see-through eggs.They then opened up the embryo to study this interesting creature. The study has been

tttpublished in the Journal of Fish Biology. On the decision to remove the fish before it had completely hatched naturally, the researchers believe that the embryo might not have survived if that was the case. They also believe that these mutant species of embryo would not live long before hatching. What would you have done if you spotted a fish like this?