Two wolves for 2 people with very special bound. Together they make a heart.
The wolf is a common motif in the many mythologies  throughout Europe, Asia  and North America.
The wolf is a totemic symbol in Alascan, North American indians, Mongolian and Slavic traditions.
In Ancience Greek, Apollo is the Wolf-God and in Ancient Roman mythology wolves are mainly associated to Mars, god of war and agriculture.
A she-wolf nurses Romulus and Remus, sons of Mars and future founders of Rome. The twin babies were ordered to be killed but a servant placed the two on the banks of the Tiber river. The river rose and carried the cradle and the twins downstream and they were adopted by a she-wolf known as Lupa.