CalPhotos, hosted by the University of Berkely-California, is a boon to any learner doing research on specific animals or plants.

The photographs have extra layers of information that make CalPhotos an excellent site for learning.

The 250,000+ scientific photographs, submitted by a variety of people and organizations in the scientific community, make CalPhotos an incredible resource for learners working on projects and in need of some visual elements.

The search engine has various levels of sophistication, so users can use scientific terms or specific geographical locations to narrow their search.

Clicking on the "more details" link on any of the images, and users are directed to additional scientific information about the animal, plant, or bacteria chosen, including family, order, class and habitat. The page also contains copyright information about using the photo, allowing learners to cite their resources for any coursework.

Visit http://calphotos.berkeley.edu/ to try it out or to find out more.