Animals communicate with one another in many interesting ways. These may consist of signs, gestures, looks, sounds, smells or even light produced by the body.
Song and dance are the other means of communication. When faced with danger, animals warn others using signals such as mock charges, grimaces or sound.
They also call their mates, inform other members of the group about the source of food, advertise territory and 'teach' the young the ways of the world. Baby birds call their parents for help and attention and demand food. Far from being a silent world, the ocean is a noisy place.
Fishes, molluscs, sea lions, walruses, whales and dolphins chatter away in the waters using a variety of sounds-whistles, squeaks, clicks and groans which range from low pitch to ultrasonic sounds beyond the range of human hearing. Whales and dolphins are sometimes called the 'musicians of the sea' as birds are of the sky.
According to the passage, what are the various ways in which animals communicate with one another? Choose the correct answer from the options given below.
Animals communicate through song and dance, signs and sounds, so the answer is 1, 3 and 4.
The passage lists signs, gestures, looks, sounds, smells and light as means of communication.
It also names song and dance as further means.
So song and dance, signs and sounds are all supported by the passage.
Speech and words are human language forms not attributed to animals here.
So speech and words are excluded from the answer.
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