English is widely spoken as de facto national language. Hundreds of Aboriginal languages exist, many extinct since 1950. Immigrant languages include Chinese, Italian, and Greek
Canada's population density was 4.2 people per square kilometre in 2021. Total population reached 36,991,981 in 2021, up 5.2% from 2016. Indigenous population grew 42.5% from 2006 to 2016
Brazil's 203 million population in 2022, making it the seventh most populous country globally. Most Brazilians live within 300 km of the coast. Population distribution is uneven, with dense coastal areas and sparse interior regions
Hummingbirds are small, flight-capable birds native to Americas. Family Trochilidae contains approximately 366 species. World's smallest bird is bee hummingbird at 5 cm length. Males have widest plumage color diversity among birds
Brain drain refers to substantial emigration of individuals from one country to another. Geographic brain drain occurs between countries with better opportunities. Organizational brain drain happens when workers leave companies for better pay. Industrial brain drain involves leaving entire industries
Population decline occurs due to aging, emigration, and fertility rates below replacement. Declining population can increase per capita wealth and alleviate environmental issues. Aging population and skilled worker shortages can reduce quality of life