evidence: Comparative studies find relationships between high birth rates and traditional religious beliefs in multiple places. Some accounts emphasize higher birth rates among Muslims, despite wide variation across communities. Religious conservatives in many faiths record higher birth rates: evangelical Christians, Mormons, Hindus, Orthodox Jews, and others. Some groups have historically been known for large families. In Russia, some non-Russian ethnic groups have higher birth rates than Russians. The birth rates in the largely Muslim North Caucasus have been a particular concern for Moscow. Despite birth rates among many ethnic populations declining, births in many non-Russian communities continue to remain higher than those of ethnic Russians. Several analysts call attention to a phenomenon of ethnic groups that feel threatened responding with high fertility rates. Russia’s "punished peoples"—those accused of sympathizing with the Germans during World War II and deported from their homelands—have received particular attention. Marat Ilyasov, a scholar from Chechnya who now teaches in the US, makes a strong case for the Chechens, one of the groups that managed to return to their ancestral territory, striving for high birth rates to guarantee the nation’s survival. They have the highest birth rates in the country.