these behaviors include for example

these behaviors include for example,dogs barking for hours,and wild animals,like deer,appearing confused or losing their natural fear of people
2. this belief is justified by the fact that many animals have such sensitive auditory capacities to hear noises from fracturing rock beneath the earth's surface
3.in short,the observation of animals' behaviors may increase the opportunity for humans' survival
4.in response to these faint underground noises,animals have been known to exhibit many strange,unexpected behaviors