SAN JUAN DE MARCONA, Peru — First, there was the H5N1 avian influenza of 2022, then El Niño arrived in 2023, disrupting coastal waters and fish availability. For Peru’s Humboldt penguins, the only species of penguins that breeds in the country, the burden was too heavy: Its population dropped by two-thirds between 2022 and 2025. […]
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