Why do ants have tentacles with each other?

One day, after eating a pear, I was about to throw away the leftover pear, and my mother said, "Give the kernel to the ants." "I listened:

It's winter, how can there be ants? My mother pulled me into the house, pointed to a small hole in the corner and said, "Look, it's here."

So, I put the pear pit next to the hole. After a while, the pear core was discovered by one of the ant's detectives. It crawled to the pit pit, touched it with its antennae, and then ran back, and on the way it met an ant, and they touched the antennae and continued to crawl until they reached the hole.

After a while, a large pile of ants crawled out of the ant hole, and I thought it must be an army of ants. They climbed up to the pit like a peak, worked on it for a while, and then crawled back into the hole. I take a closer look, and ah!

They're biting down on a piece of flesh with their teeth and moving it into the hole! After a while, a pear pit was gnawed out of a hole by the ants.

Why are there ants in winter? Why do you want to be on each other's tentacles? Do ants get lost in search of food?

A series of questions came to my mind. To figure out these questions, I found out the book "100,000 Whys".After careful searching, I finally got the answer to all the questions, there are ants in winter because they don't stock up enough food for the winter, and the ants will also go out and leave a smell in relatively warm conditions, and when it returns, as long as it follows the smell, it will definitely be able to return to the ant hole, so the ants will not get lost.

As shown in the figure below:

The ant's body is divided into three parts: head, thorax, and abdomen, with six legs, thin and elastic body walls, membranous wings, hard and brittle.

The head changes a lot and is usually broad. The head weight is the heaviest among terrestrial animals compared to body weight. The antennae of sexual and asexual females are knee-shaped, and the antennae of males are simple, 4-13 segments.

The compound eye is small, withdrawn, and occasionally completely absent. 3 in one eye, located on the top of the head, worker ants or no single eye.

The mouthparts are well developed, the upper lip is vestigial, the upper jaw has various shapes, wide and large, long or short, straight or curved, or has simple teeth, and the lower jaw is normal, with 1 6 segments. The inner jaw lobes are simple. The lower lip has whiskers, subchin with a mesolabial tongue and two small lateral labial tongues; Lower lip tongue 1 4 segments.

Ants do not have noses and are extremely myopic eyes. But their antennae have an extremely sensitive sense of smell, and they rely on this organ to forage for food, get home, and send messages along with the special secretions they release. They have wooden mouths, and their communication with each other relies on the mutual contact of their tentacles to emit chemicals, which is equivalent to human speech.

Because ants have poor eyesight, they are not suitable for use