Why do cockroaches like to drill into water cups?

Because cockroaches also need water and like wet places.

Cockroaches belong to Arthropoda, Insecta and Cockroaches, and are common medicinal insects. Cockroaches are flat, dark brown and usually of medium size.

Small head, move. Antennas are long and filiform, and compound eyes are developed. The wing is flat, the front wing is a sheath wing and the rear wing is a membrane wing. The front and rear wings are basically the same size, covering the rear of the abdomen. Some species have no wings. People who can't fly walk very fast. The transformation is not complete. There are about 6000 kinds of eggs in the egg sheath, which are mainly distributed in tropical and subtropical areas and live in the wild or indoors.

Morphological characteristics:

Biologists draw a conclusion according to the ecological habits of cockroaches: If a global nuclear war breaks out on the earth one day, all creatures in the affected areas, including humans and even fish, will disappear, and only cockroaches will continue to survive!

This is because the human body can usually withstand 5 rem of radiation, and once the total dose exceeds 800 rem, the human body will die. Blattella germanica can tolerate 9000- 105000 rem, and Periplaneta americana can tolerate 9675000 rem!

(radiation dose. The dose of rem is equivalent to Urem (SV) 1SV = 100 rem), so cockroaches can survive nuclear explosions. The US government spends $654,380.5 billion on cockroach eradication every year, which is about twice the cost of AIDS prevention and control.