Why are spiders more scary than sharks?

[Anomalocaris]

My brother gags watching me eat crab or lobster since I have pointed out to him they are actually just great big bugs.


(More for me to eat)

Uh, not really. The last common ancestor between crabs and lobsters on the one hand, and anything we call bugs, like insects, spiders, and millipedes, on the other, certainly predates the great Cambrian explosion 550 million years ago. This means the evolutionary separation between crabs and spiders are nearly as great as that between spiders and humans.