Why are spiders continued to be suspecte in the hunt for the original host of Ebola? What about the "sharp rock" hypothesis? In the end, list as many possible hosts as you can remember from all the scientist in the book.

The author notes that, At knee level, in total darkness, I found spiders living in webs. They had left their egg cases scattered about, hanging from the rock. He realized that the spiders could have contacted the virus from the insects they eat.