By Team Aakash Byju's
A cockroach egg is the earliest stage of the cockroach life cycle and it cannot be seen unless it is extracted with a scalpel.
When the ootheca's eggs hatch, the baby cockroaches within begin to take deep breaths, enlarging their bodies and eventually spreading.
Cockroach nymphs are tiny, fragile, and milky white when they are first hatched. Within a few hours, their skin starts to brown and harden.
Cockroach nymphs are similar to adults. They are sometimes lighter in color, becoming darker as they grow older.
Nymphs outgrow their exoskeleton as they grow older and shed it in a process known as Molting.
Before reaching maturity, cockroaches will molt anywhere from 6 to 13 times; this time is utilized to assess the nymph's growth.
The time from birth to the final instar varies by cockroach species, but it usually takes between 100 and 600 days.
Adult cockroaches can mate and breed when they reach adulthood and some species' adults have wings.