Deinopis madagascariensis - side view, Andasibe, Madagascar
I was thrilled to come across this awesome spider during a night tour in Andasibe. Net-casting spiders have a highly specialized and skillful way to catch prey. Instead of spinning a large cog web, they produce a tiny net-like web which they "hand hold" with their front legs. The spider has highly adapted vision to not just see in poor light, also to do so in a very wide angle. When a victim approaches the web, the spider will stretch out the net and cast it on its victim.
An unusual and impressive strategy, but it becomes even more amazing when you realize the speed and timing of it. This is a millisecond operation: