The great matriarch was believed to be in her mid-60s, at the upper reaches of life expectancy for an elephant in the wild.
“It’s estimated her ill health was brought on by old age and exacerbated by the drought,” read a statement from Save the Elephants, a Kenya-based wildlife conservation group.
A mother of seven calves, Monsoon survived being shot five times during a rampant poaching crisis about a decade ago that sent Africa’s wild elephant populations into freefall.
During the wholesale massacre of elephants for ivory, Monsoon lost two of her own calves to poachers, and scientists believed she would never give birth again after the trauma of being shot.
But in 2018 she delivered a calf in Samburu, nine years after her ordeal.
It was not the first time she had defied the experts.
In 2006 she led her family to safety up one of the biggest hills in Samburu, shortly after Save the Elephants published a study asserting that elephants tended to avoid steep terrain.
Four consecutive rainy seasons have failed in Kenya, Somalia and Ethiopia, an unprecedented climatic event that has pushed millions across the Horn of Africa into extreme hunger.
Older elephants and young calves are the first to succumb to prolonged drought, experts say.
“Sadly the outlook for rain later this year is grim and there are fears the drought may stretch well into 2023, which is a major worry,” said Save the Elephants founder Iain Douglas-Hamilton.
“We are working with our partners, local communities and government in Kenya to address the long-term problems the drought will bring to wildlife and communities alike and doing our best to prevent more elephants like Monsoon from dying.”