Plants that eat insects : The venus fly trap closes, traps, then digests any insect that lands on its hair covered leaves. The pitcher plant captures insects that venture over the rim then fall to the bottom, others can open their lids and let rainwater in to drown their pray. A few plants grow large enough to trap small reptiles and animals.

Hypersonic : A body moving at Mach 5 (five times the velocity of sound) is called hypersonic. Such high speeds create shock waves. Passage of a shock wave is heard as a sharp crack, a sudden bang, or one or more heavy booms. US has such Hypersonic aircrafts. Speeds higher than that of sound are called supersonic, while that below the speed of sound are called subsonic.