Attached to the shell of Curcull eggs are incredibly sensitive hair-like structures, formally referred to as setae, that gauge the surrounding environment in terms of temperature, humidity, and wind. The climatic information gathered via setae is then processed by Curcull eggs to determine the most appropriate time to hatch (thus ensuring a higher survival rate).
Regarding the shell itself, it is of a rubbery, almost gelatinous, texture. This beneficial property makes Curcull eggs rather durable, being able to even resist harsh impacts and falls.
Curculls are infamous amongst farmers as one of the most destructive pests to ever be encountered. Notorious for targeting wheat fields in particular, a large enough group of Curculls can completely demolish an acre of crops within several days.
With an average length of three millimeters in fully matured Curculls (the eggs being even smaller), it can become difficult to notice an infestation before it spirals out of control. Special pesticides have been formulated and perfected to specifically keep Curculls at bay.