A cricket is an insect related to the grasshopper. Like grasshoppers, they have chewing mouthparts, and their back legs are larger and stronger than their other two pairs. Crickets have rounded heads, long and thin antennae, and wings that bend down on the sides of their body. Unlike grasshoppers, crickets typically appear flat. Most common cricket species are ground crickets, house crickets, and field crickets, along with the camel crickets and the distinctive mole cricket. Ground crickets are much smaller than other species, and are brown. House crickets grow to be around 16 to 22 mm long and are yellowish-brown. Field crickets can grow longer than 2.5 cm and are brown or black. House crickets can bite humans, but generally are not able to puncture the skin. Crickets carry and spread a variety of diseases through their saliva and excrement. In addition to their potential health hazards, they can wreak havoc on items throughout the home, such as clothing, furniture, houseplants, and wallpaper. Crickets often cause damage by eating seeds and crops and can even destroy an entire garden.