yellow fever

8 09, 2017

Central and South American history – colonization

By |2018-04-29T10:45:08-07:00September 8th, 2017|Central America, History, South America|Comments Off on Central and South American history – colonization

South American history: Aztec doctor treating people with smallpox (1500s AD, Codex Mendoza) The Inca, Brazil, and Chile In 1500 AD, the Inca Empire dominated the east coast of South America. Further north, [...]

8 09, 2017

History of Brazil – Brazil and colonization

By |2019-02-22T06:00:17-08:00September 8th, 2017|History, South America, Where|Comments Off on History of Brazil – Brazil and colonization

History of Brazil: The Tapuia people, ca. 1650 (by Albert Eckhout) Tupi war with Tapuia In the late 1400s AD, the Tupi people had just won a big war with the Tapuia people. [...]

25 05, 2017

Why do mosquitoes bite? Biology

By |2018-04-15T17:18:17-07:00May 25th, 2017|Biology|Comments Off on Why do mosquitoes bite? Biology

Mosquitoes bite people: A mosquito on human skin Like bees, mosquitoes evolved from earlier flies and dragonflies about 200 million years ago, during the Jurassic period. Mosquitoes have six legs like [...]

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