Camels and extreme heat:

“‘Our works show that prolonged day-and-night heat above 41 to 45C directly attack their cells’, he told the BBC.

‘Their immune system suffers because such heat levels damage their white blood cells and other cells because of stress, they [the cells] struggle to repair themselves and end up destroying themselves’.”
https://www.bbc.co.uk/news/articles/cqlxvvw06pqo