Crickets can regrow legs especially as nymphs.
After a cricket loses a leg the cricket will develop assemblies of cells which can differentiate into various different types to regenerate and regrow the lost part of the leg or leg.
Cricket nymphs have the remarkable ability to regenerate a functional leg following amputation, indicating that the regenerating blastemal cells contain information for leg morphology.
However, the molecular mechanisms that underlie regeneration of leg patterns remain poorly understood.
While the leg is functional, crickets are not as good at regeneration as other animals like the axolotl.
The leg grows back slowly, and the cricket can walk.
The nymphs, or baby crickets, will molt multiple times as they develop into adults, which typically takes about three months.
The average life expectancy of most adult crickets is 1-3 months, though they may live as long as a year in the wild.
While crickets do possess mandibles that they may use defensively, they are not equipped to bite humans in the same way that biting insects like mosquitoes or ticks do.
Crickets are orthopteran insects which are related to bush crickets, and, more distantly, to grasshoppers.
In older literature, such as Imms, "crickets" were placed at the family level, but contemporary authorities including Otte now place them in the superfamily Grylloidea.
Crickets can hear each other's chirps through a special auditory organ called a tympanum that's located on their forelegs.
This organ is hypersensitive to vibrations which keeps them alert to any approaching predators.
This explains why you might find it difficult to sneak up on a cricket.