Bena Bena residence determines kinship

Living together can make people family

Among the Bena Bena, people can be considered relatives because they live together as part of the same group. In this system, people do not always live together because they are already family; living together can itself create the family relationship.

A vaccine teaches the immune system before the real infection arrives

A vaccine shows the immune system recognizable parts of a germ without requiring the disease itself. Some of the B and T cells that respond remain as memory cells. If the real germ arrives later, the body already has defenses prepared for it.

Indian mathematicians developed ideas related to calculus centuries earlier

In 15th-century India, mathematicians of the Kerala school developed advanced methods for working with sine, cosine, and arctangent. They did this about two centuries before calculus was invented in Europe.

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Bena Bena residence determines kinship

Living together can make people family

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