The creators of a new children's book that aims to teach donor-conceived children of same-sex parents their biological origins have nearly fulfilled a Kickstarter campaign to make their book, Zak's Safari, available to a severely underserved market.

According to author Christy Tyner, Zak's Safari follows Zak, the son of a contemporary, loving two-mom family who's interested in biology and curious about his origins. On a day when the rain prevents him from having an adventure outside, he turns "a very special tour of his family" into an adventure for readers:

Zak shows us how his parents met, fell in love, and wanted more than anything to have a baby—so they decided to make one.

In the first half of the book, Zak teaches us about his biological origins. Using simple but accurate language, we learn about sperm and egg cells, known-donors, donors from sperm banks, and instructions called genes that make up who we are. Zak's enthusiasm, combined with his scientific curiosity and gratitude for his inherited "awesome genes" make him the perfect tour guide for this contemporary conception story.

The second half of the book celebrates family. Gorgeous illustrations depict Zak and his two moms living the adventure of everyday life: eating meals together, playing at the beach, going for nature hikes and hanging out with friends and family.

Tyner stresses the importance of "talking early and often, keeping it simple and honest." Zak's Story is merely the casual start of an important conversation.

With three days left to fund their project entirely, Tyner and illustrator Ciaee are just $1,500 shy of their $13,000 goal. Several rewards are available for those wishing to donate, including hardcover copies of the finished book and framed canvases.

To fund Zak's Safari and check out more of the book's stunning artwork, see the project on Kickstarter.