Trademark and

Trademark Guidelines

These guidelines outline the rules for using the E.O. Wilson Biodiversity Foundation’s trademark assets. Please help us protect those assets by following these guidelines.

The E.O. Wilson Biodiversity Foundation possesses trademark rights in the E.O. WILSON BIODIVERSITY FOUNDATION wordmark, the HALF-EARTH PROJECT wordmark, the HALF-EARTH DAY wordmark, and the logos available at the following links:
Download Half-Earth Project Logos
Download E.O. Wilson Biodiversity Foundation Logos

Permitted Uses
You may use our trademarks and logos in:

  • Newscasts and news programming
  • Editorials
  • Talk shows
  • Partnerships or sponsorships with a formal agreement in place with the E.O. Wilson Biodiversity Foundation and subject to additional guidelines and restrictions

Please submit a request for permission when you need to use any of our trademarks in any other manner, including to advertise or promote goods or services other than those of the Foundation, such as in:

  • Marketing or advertising that appears on TV or online
  • Print packaging
  • E-mail solicitations

Selecting the correct logo:

When using the Half-Earth Project or the E.O. Wilson Biodiversity Foundation logos, these guidelines for selecting the correct logo should be followed:

You may use only the logos provided at the links above. Note that there are two Half-Earth Project logos, with and without a tagline, but there is only one version of the E.O. Wilson Biodiversity Foundation logo. Copies of each logo are available in color, black, and white,* in .eps and .png file types. USE OF COLOR VERSION IS STRONGLY PREFERRED. White and black are acceptable where the color version is not appropriate (does not appear well on background; the logo is being used on a black and white product).

  • Do not use the logo smaller than 1 inch wide. Larger than 1 inch is preferred for increased legibility.
  • .eps files are vector files and may be resized and exported for any use using illustrator. In print production, this file may be used as is.
  • .png is specifically for Microsoft products or online use. The file has a transparent background. If you require a white background, please export to .jpg using Photoshop.

*Note: the white files will not appear unless put on a dark background. White files cannot be exported as .jpg files unless first placed on a dark background using Photoshop.

If using on a website, please link the E.O. Wilson Biodiversity Foundation and/or the Half-Earth Project name and logo as follows:


Consistent messaging concerning the mission of the E.O. Wilson Biodiversity Foundation, the Half-Earth Project, and Half-Earth Day is important to the Foundation. When referencing the E.O. Wilson Biodiversity Foundation, the Half-Earth Project and/or Half-Earth Day we request that the following language be used, unedited, to maintain that consistency.

About the E.O. Wilson Biodiversity Foundation
The E.O. Wilson Biodiversity Foundation’s mission is to foster a knowing stewardship of our world through biodiversity research and education initiatives that promote and inform worldwide preservation of our biological heritage. We believe that by enhancing our public understanding of biodiversity, we can foster a culture of stewardship in which people are inspired to conserve and protect the natural world.

About the Half-Earth Project
Half-Earth is a call to protect half the land and sea in order to manage sufficient habitat to safeguard the bulk of biodiversity and ensure the enduring stability of our planet.

The Half-Earth Project is an initiative of the E.O. Wilson Biodiversity Foundation that is: 1) enabling significant scientific innovation and leadership regarding the most effective path forward for protection of endangered species and endangered ecosystems; 2) fostering our connection with the natural world and the education of our next generation stewards and; 3) providing the foundation for a revolutionary movement culture of action to achieve the goal of Half-Earth. 

About Half-Earth Day
Half-Earth Day is an annual celebration and opportunity for people from around the world and across disciplines to share their unique thought leadership on how we can work together to achieve the goal of Half-Earth and ensure the health of our planet for future generations.