One of these
 animals named Orthrus had two heads and was killed by Hercules during the labor involving the cattle of
 Geryon.
One of these animals named Maera brought Erigone to the body of her father, Icarius. Another of these
 animals was depicted next to the throne of Serapis, the official god of Ptolemaic Egypt. The female doctor
 Procris of Athens was given one of these animals as a gift after she cured King Minos. One of these
 animals named Orthrus had two heads and was killed by Hercules during the labor involving the cattle of
 Geryon. One of these animals, Laelaps, was turned to stone by Zeus after he created a paradox by chasing
 an uncatchable fox. Odysseus owned another of these animals named Argos. For 10 points, name this
 animal, examples of which include Cerberus.
One of these animals named Maera brought Erigone to the body of her father, Icarius.
{dogs}