Crickets are brightly colored and rounded, with large heads, short wings, and long antennas. They are around 2 centimeters (0.8 in) in length and in the daytime they hide in the holes that they have dug. Only the males produce sounds, to attract the females, by rubbing their wings against each other. In the amber shown, you can see a tree cricket, which has been preserved without degradation for 45 million years. When we examine the recent examples of this insect, we see that they carry the same features since the day they were created. To put it another way, they never evolved.