Similarly, the spread southward of Fertile Crescent domestic animals through Africa was stopped or slowed by climate and disease, especially by trypanosome diseases carried by tsetse flies.
A fly called the tsetse fly carried a disease that would kill horses and cows, so these explorers needed to hire humans to carry all of their possessions for them.
So let's get into the hows and the whys and what of insects that nurse their young, including tsetse flies, and of course, our beloved milky mama roach, Diploptera punctata.