The library has books available in both print and e-book form. Print books are located on the first floor of the library and can be searched for in the catalog. E-books are usually accessed through databases. The library has a few databases of e-books, including:
Over 150,000 fiction, reference, scholarly, and professional books online.
Scholarly titles supporting student and faculty research, and general nonfiction on topics such as school & studying, career development, arts & leisure, and practical life skills.
Books tend to be better for more general overviews of a topic as opposed to articles that go in-depth on specific topics. Books can cover lots of ground in varying amounts of depth, whereas articles cover a smaller amount of ground in great depth.
Search for books in the catalog here.
Some Dewey Decimal ranges where you may find books on this topic are:
570s: General Biology
590s: Animals (Zoology)
Forensic Analysis of Biological Evidence by 
The Genesis Machine by 
The Invisible History of the Human Race by 
Key Topics in Conservation Biology 2 by 
Life's Edge by 
Evolutionary Biology by 
Principles of Biology by