Having established the basic symbolism that a leopard hides, watches and then attacks when it can it is worth noting one feature of the leopard in prophetic passages: it forms the basis of composite creatures. In Dan 7:6 and Rev 13:2 a beast is described that is similar to a leopard. However in both cases the mode of transportation of the beast is provided by some other creature: wings in the case of Daniel and bear's feet in the case of Revelation. It must therefore be the secretive, watchful and possibly hidden nature that is the basis of these animals.
Animals obviously show emotions such as fear. But this can be taken to be instinctual, similar to what happens when people cry out in pain. Behaviourists had no trouble with fear, seeing it as a conditioned reflex that they knew full well how to create. The real question is whether animals have feelings which involve some sort of mental experience. This is not easy. No one knows precisely what other people mean when they talk about their emotions; knowing what dumb beasts mean is almost impossible. That said, there are some revealing indications—most notably, evidence for what could be seen as compassion.
But their influence was not sufficient enough to stop animal sacrifices. Ancient Indians regularly indulged in animal sacrifices and rarely in human sacrifices. In some remote areas of India animal sacrifices continue even today. The raise of Tantricism in the post Mauryan period and the integration of folk religions into Hinduism contributed to the rise animal sacrifices. Kings sacrificed animals to appease divinities seeking their blessings and support. Inscriptions belonging to the Gutpa period suggest that people had an obligation to supply sacrificial animals on demand to their king. Sometimes the kings exempted some villages from this obligation. Sri Adishanakaracharya disapproved extreme methods of tantric worship which included animal and human sacrifices. During his travels in the subcontinent, he encouraged the worship of shaktis through the traditional methods of rituals and puja rather than sacrifices and offerings of blood and flesh.