Humpback Whales Are Back in Rio, But Is Tourism Helping or Hurting?
Humpback Whales Are Back in the waters off Rio de Janeiro, marking one of the ocean's most remarkable recovery stories. Brazil's humpback population fell to fewer than 1,000 individuals by the late 1980s after centuries of commercial whaling, and has since rebounded to an estimated 30,000, according to Thiago Ferrari…