“The new thinking is that mild fever can be a positive adaptation and shouldn't necessarily be treated. At other times, though, fever may spur the microbes' growth rate by raising the temperature of the host body. In this case, the attackers have evolved a way to chemically manipulate the host's immune system for their own advantage”…
“ All except one of 13 iguanas sought the warmth to raise their temperatures, and those 12 survived; the other one died.”…
https://www.pbs.org/wgbh/evolution/library/10/4/l_104_04.html
“ All except one of 13 iguanas sought the warmth to raise their temperatures, and those 12 survived; the other one died.”…
https://www.pbs.org/wgbh/evolution/library/10/4/l_104_04.html