But if you don't consider the Biblical account of creation to be credible in the first place, and don't consider the grafting of bits of Greek philosophy, such as Aristotle, into that as viable, it's not any loss to discover something new that Aristotle didn't recognize and whoever wrote the Bible didn't anticipate. The idea of a clear "bright line" separation between humans and other animals is all that is lost by the discovery of evolution, again, that rigid ideology. And even if the current Darwinian Fundamentalists lose the battle and a new theory is constructed allowing for some sort of "guided" evolution by a form of complex response in DNA itself, I don't think that overthrows scientific materialism and restores superstition. (Though that is clearly what the Darwinian Fundamentalists think...)
The very idea of a dichotomy between "mind" and "matter" has some serious issues in itself. But in the current tradition of accepting only physical evidence, I would point out that many animals, primate and non-primate, exhibit behaviors which can be interpreted as analogous to human religious ritual. Especially in regard to death rituals.
Wikipedia to the rescue, as usual. :)
While grief is common to many animals, funeral rituals are not. However, they are well documented in African elephants.
Ronald K. Siegel writes that: "...one cannot ignore the elaborate burying behaviour of elephants as a similar sign of ritualistic or even religious behaviour in that species. When encountering dead animals, elephants will often bury them with mud, earth and leaves. Animals known to have been buried by elephants include rhinos, buffalos, cows, calves, and even humans, in addition to elephants themselves. Elephants have [been] observed burying their dead with large quantities of food fruit, flowers and colourful foliage."
Both wild and captive chimpanzees engage in ritualized behaviors at the death of a group member. These behaviors begin with group or individual silence, which may last for hours and followed by behaviors such as distinctive vocalizations; grooming the corpse; solemn visitation and gazing at the corpse by group members; displays; and lamentation-like whimpers or hoo-calls of distress.
Attention to the dead is not unique to elephants or chimpanzees. Dolphins have been known to stay with recently deceased members of their pod for several days, preventing divers from getting close. However, the reasons for this remain obscure. While scientists can observe their actions, the thought processes that motivate them are beyond current study.
See the article itself for sources.