There is science and there is materialism. People think that the former can only include the latter. Hence we have the problem of misguided understandings such as evolution.
The scientific classification of animalia includes multicellular organisms composed of eukaryotic cells, lacking a cell wall and organized into tissues and internal organ systems. They ingest and digest complex molecular substances for growth, development and reproduction. These organisms possess muscles for mobility and nerves for conduction of impulses. An understanding of life includes the psychological, that nerves and muscles are the physical manifestation of an organisms reality, which obviously includes instinctive perceptions, feelings and behaviour.
Human beings are different than animals because they possess an eternal soul which allows them to be causal agents and therefore relate at the highest levels of creation, having the capacity to love and participating in the creation of themselves. This would be part of a scientific understanding that seeks to be comprehensive and address the reality of things as they are.
Science is a social phenomenon as a collection of knowledge organized and communicated in ways that we can understand, using obviously words that describe and present a story of how things work, as well as mathematics, symbols and images. It has much to do with the search for knowledge but its direction is very much influenced by philosophical and cultural attitudes, political and economic forces as well as the quest for honour and fame. These impact on the sort of understanding of the world and our place in it that we we end up with in.
Because of our focus on material things and also health, the inclination is to put on blinders to our knowledge and see only what is relevant to those endeavours. Science itself as a facet of human existence that deserves study is relegated to the fields of philosophy and metaphysics. To fully explain our origins, such important aspects of life are necessary. With their exclusion, we get a distorted view of what transpired, as we would thinking that the appearance of a dome above us rather than space was the reality of the cosmos. We join the dots forming a local picture that represents evolution; including those beyond just the physical, a very different image appears - the truth of creation.