CANCER

Cancer is symbolized by the Crab. They're deeply emotional and intuitive, and their top concern is family. They prefer to stay in home rather than go out on the town. They can be moody, drawing into their protective shell if things get too intense around them.
This constellation was called Tortue by Babylonian or Scarabée by the Egyptians, 4.000 years front J. - C. As of 2.000 years front J. - C., the majority of civilizations named it Crabe or a similar creature with grips.
The modern symbol for Cancer is the crab, but it has been represented with various types of creatures, usually those live in the water, and always those with an exoskeleton.

Crabs live in the inter-tidal zone of the oceans, where tides rise and fall twice every day. This is the most dynamic and changeful place on earth, but also the most nutrient rich. Because of the constant change, Cancer have developed a hard outer shell for protection. Cancer can use the hard outer shell of their home as their protection. But it's more than just that. Typically, their sensitive Cancer can hold their feelings quietly behind their own walls.
Crabs also have large pinching claws, and Cancer can hold onto things, especially from the past. Cancer are fiercely loyal and have a difficult time letting go. But Cancer are also quick to bring those they love inside the safety of their outer shell while they nurture them. Cancer love is protective, but unless tempered, can be smothering.Cancer motto could be, "A good defense is the best offense." Like a Crab in its cave, their attack can consist of baiting their opponent into their territory. What appears to be a retreat to others can be their best aggressive tactic. As they feel their way through life, building their security by developing their home and family relationships, remember that unexpressed anger can turn into resentment and depression, so find someone they can trust and share their feelings.