They are called antenna.
Mostly all insects have feelers. As we know that there are a large amount and types of insects in the world so I can not tell you the exact number.
No. There are many such as catfish.
Your stick insects have probably been fighting. this is normal
That depends on what you mean by "feelers". They didn't have antennae the way insects do. They did have a sense of touch like you and all animals do.
Yes there is. Another name for insects is bugs.
Yes, nymphs, which are the immature stages of certain insects like grasshoppers and dragonflies, do have feelers, commonly referred to as antennae. These sensory appendages help them navigate their environment, detect food, and sense danger. While their feelers may not be as pronounced as those of adult insects, they are still functional and important for the nymph's survival.
Yes. All insects have six legs, feelers, and wings.
Ants are insects. Practically all normally developed insects have exactly two antennae (feelers) each, except for some of their life stages, such as eggs. All fully grown ants have two antennae each, like practically all other fully grown insects. In this they differ from say, crabs and lobsters, that have four.
Feelers are sensory organs found on animals that are used to detect or perceive information about their environment. They can help animals sense chemicals, temperature, vibrations, or textures in their surroundings, aiding in navigation, communication, and finding food or mates. Feelers are commonly found on insects, crustaceans, and some other invertebrates.
The feelers on an ant's head are actually called antennae. The ant uses them to smell and taste things. The antennae can also detect vibrations and air currents as well as send signals and receive them in return.
Beetle
All insects have six legs and three body parts. These parts are the head, the thorax, and the abdomen. All insects are cold-blooded creatures and all insects have antennae that are sometimes referred to as feelers.