Baby Mantis

A baby mantis on the tip of my sisters finger. When my dad and I were packing away the nets from the fruit trees I noticed something stuck to one of them. It looked like a bit of packing foam but also looked like it might be an egg sack of some kind so I put it in a jar and one day the jar was filled with about 70something baby mantises (sp?). They were so tiny, and they sway and jump!