Vocal cords are the vocal organs of frogs. Located above hilar cartilage. The external sound sacs of some male frogs can expand and vibrate on both sides of their squabble, and the sound sacs make a * * * sound. Frogs always seem to "chorus" irregularly. However, Japanese researchers have found that there is a mystery in frog chorus. A single frog actually croakes at a slightly staggered time with other frogs nearby, so that its voice will not be completely drowned, and it can claim its territory.
Extended data
Frog's chorus is not disorderly singing, but has certain rules, including lead singer, chorus, chorus and other forms, which closely cooperate with each other and are real chorus. Chorus is much superior to solo because it contains more information; Chorus is loud and far away, which can attract more female frogs, so frogs often use chorus.
After five days' monitoring, it was found that a frog and its companion who was only 1 to 3 meters away from it sang at different times, while the companion who was 3 meters away from it might sing at the same time. Because a frog can make three vocalizations in as short as 1 second, and the chirping is one after another, which sounds like a chorus.
Frogs often inhabit rivers, ponds and rice fields, mainly in the grass near the water, and sometimes they can dive into the water. Mostly at night, mainly eating insects, but also eating some snails, snails, shrimps, small fish and so on. Most of the insects they eat are agricultural pests.
There are many kinds of pigment cells on frog skin: melanocytes with black or brown pigment particles, yellow pigment cells with yellow pigment particles, red pigment cells with red pigment particles, and many iridescent pigment cells with reflective crystal plates.
Baidu Encyclopedia-Frog (Amphibia Anura)
People's Daily Online-Scientists Explain the Secret of Frog Chorus