If you're an adult colorer looking for some advanced templates to challenge you, then break out the colored pencils because here are 25 free printable coloring pages for adults!

1 Biology Arizona State University's Ask an Expert website has nearly 100 science-themed coloring pages on subjects ranging from desert ecosystems to neuroscience to the ocean's teeny, tiny plankton.

For a space-tastic adventures, the Two Kids and a Coupon team created a special set of printable Rocket Coloring Pages for your family to enjoy. But first some fun rocket facts.

D ee Ledger can remember exactly when she found solace, if not salvation, after the death of her 10-week-old son. It is where she found it, and how, that surprised her: in a coloring book.

Coloring books for adults have grown exponentially popular — to such an extent that they're keeping the publishing industry afloat. Besides the fun of feeling like a 5-year-old again, the ...

Coloring for adults is an activity surging in popularity. Commentator Barbara J. King discovers that coloring engages her senses, even easing, a bit, her grief at the loss of a parent.

The next time you feel stress and anxiety riding on your shoulders, pick up a coloring book. Seriously, they're not just for kids anymore. Adult coloring books are the new way to unwind, and many ...