Why is it said that some mammals have ears adapted for better hearing?

          Just like humans, all forms of life in the Universe have the ability to hear, or sense things around them. But some of them have exceptional features for hearing, which enable them to survive better than others.

          One such animal is the elephant. Its hearing frequency is somewhere between 16 and 12,000 hertz, as a result of which, it can hear at a frequency 20 times lower than us.

          Another mammal that has a special auditory system is the fennec fox. It is a small species of fox seen in the sandy Sahara. It has large ears that play a vital role in hearing, as well as keeping the animal cool by spreading out during high temperatures. Other than these two, there are many animals that are sensitive to sounds. These include pigeons, owls, dolphins, etc.