North Malabar of native Hindus, native Mappila-Muslims, native Jains and migrant-Christian communities and is characterized by distinct socio-cultural customs and behavior. The people of North Malabar have striven to preserve their distinct and unique identity and heritage since ancient times, through colonial times into modern political India. From the seventeenth century onward, until the early twentieth century, there were cultural taboos among certain communities from North Malabar, which forbade their women marrying people of the same respective communities, from the southern territories. Even in modern times it is not uncommon to see "alliances from Malabar region preferred" in newspaper matrimonial announcements placed
Malabar trevally taking species of polychaete worms as the preferred species. Studies on gill filtering mechanisms has shown the Malabar trevally's anatomy lies between two extremes, one which is a high filtration area characteristic of planktivorous species and the other of very low area which is associated with species which take large prey items. This further suggests the Malabar trevally can filter the small krill type prey, as well as taking larger fishes and squid. Seasonal diet fluctuation in the species has been observed in northern Australia, where a seasonal abundance of squid causes the preferred prey to change from paenid shrimp