Guido Carlos Levi: Unexpected reaction Por Bruno de Pierro
The reasons for the decline in vaccinations Por Ricardo Zorzetto
Life-saving vaccines Por Rafael Garcia
International project preserves seeds of the wild varieties of 28 agricultural crops Por Marcos Pivetta
4,000-year-old arrowheads point to cultural exchanges between England and France Por Guilherme Eler
Indigenous lands are home to 71% of the 521 known primate species Por Eduardo Geraque