Chrome: If you frequently search for image files when you encounter new animals, foods and words, you can save time by installing Image Dictionary. The Chrome extension automatically displays Wikipedia images for a word with one mouse click.
You can utilise the extension by highlighting and right-clicking a word or by holding down the ALT key and double-clicking a word. The first image result for the Wikipedia entry for that word will appear in your browser window and you then click on the image to close. The photo also offers a direct link to the Wikipedia page for the entry and the image page.