Praying Mantis

The praying mantis is named for its prominent front legs, which are bent and held together at an angle that suggests the position of prayer. The larger group of these insects is more properly called the praying mantids
They have triangular heads with bulging eyes supported on flexible necks. 
The size of mantis is 0.5 to 6 in (1.2 to 15 cm) long.
Mantids can turn their heads 180 degrees to scan their surroundings with two large compound eyes and three other simple eyes located between them.

The majority of mantises are ambush predators that only feed upon live prey within their reach. They either camouflage themselves and remain stationary, waiting for prey to approach, or stalk their prey with slow, stealthy movements. Larger mantises sometimes eat smaller individuals of their own species,as well as small vertebrates such as lizards and frogs.

Typically green or brown and well camouflaged on the plants among which they live, mantis lie in ambush or patiently stalk their quarry. They use their front legs to snare their prey with reflexes so quick that they are difficult to see with the naked eye. Their legs are further equipped with spikes for snaring prey and pinning it in place