This is Margaret, a GIANT ASIAN PRAYING MANTIS from the rainforests of Asia.  She has truly amazing eyesight and is an incredible hunter which loves to catch and eat crickets and other small animals!  Despite her fierce looking appearance she is actually very friendly (assuming you are a person and not a cricket that is!)

Praying mantids produce egg sacs which are correctly known as ootheca.  Depending on the species of mantis these ootheca can contain hundreds of eggs and when they hatch, several hundred babies can appear within a very short space of time indeed!