Inspiring discovery through free access to biodiversity knowledge.

The Biodiversity Heritage Library improves research methodology by collaboratively making biodiversity literature openly available to the world as part of a global biodiversity community.
BHL also serves as the literature component of the Encyclopedia of Life .

The Biodiversity Heritage Library participates in a full range of social networking sites.

Use our hashtag #BHLib to talk to and about us.

BHL Blog

Get news and updates from BHL, as well as awesome information about books in our collection!

Our most recent posts:
Biodiversity Heritage Library
  • The New York Zoological Society Jan 19, 2017
    This is part of a series of monthly posts related to the IMLS-funded Expanding Access to Biodiversity Literature (EABL) grant. The project, which solicits new content through 2017, is aimed at enhancing BHL's collection by digitizing valuable and ...
  • Be Like a BHL Librarian and Edit Wikipedia for #1Lib1Ref Jan 17, 2017
    By Siobhan LeachmanBHL Citizen Scientist (Learn more)Twitter: @SiobhanLeachmanYou too can be like a librarian … a Biodiversity Heritage Library librarian! The Biodiversity Heritage Library wants people to use its resources, and Wikiped...
  • Catesby in the Classroom: Students Explore the Intersection of Art and Science Jan 13, 2017
    In the early eighteenth century, English naturalist Mark Catesby set foot in a New World. After spending the better part of ten years, spread across two separate trips, exploring and documenting North America's rich biodiversity, he would eventual...
  • BHL Welcomes the Arboretum Library at the LA County Arboretum and Botanic Garden Jan 11, 2017
    This quarter, the Biodiversity Heritage Library was pleased to welcome The Arboretum Library at the Los Angeles County Arboretum and Botanic Garden as its newest Affiliate. The BHL consortium, which has grown substantially over the past year, now ...
  • Introducing the BHL Field Notes Project Jan 5, 2017
    By: Adriana Marroquin Project Manager, BHL Field Notes ProjectIn 2015, the Council on Library and Information Resources awarded the Biodiversity Heritage Library a grant to fund the BHL Field Notes Project. Part of CLIR’s Digitizin...


Yes, BHL Tweets! Be sure to follow @BioDivLibrary to find out about new books and use the hashtag #BHLib on your own BHL related tweets.

My Tweeps

Want to explore the BHL Twitter network (i.e. those accounts that follow BHL on Twitter)? Then check out the BHL MyTweeps dashboard.

The BHL MyTweeps dashboard displays the latest tweets from the Twitter accounts that follow BHL, trending hashtags and trends over time from those followers, geographic location of BHL's tweeps (i.e. followers), and the connectivity of the BHL network (i.e. who mentions whom among the BHL community of followers). It also includes a dashboard displaying the most popular BHL books on social media that week (powered by Altmetric).

MyTweeps was developed by the Social Media Lab at Ryerson University, a Mining Biodiversity project participant. Mining Biodiversity, in which BHL also participates, is made possible by a grant from the Institute for Museum and Library Services [Grant number LG-00-14-0032-14].


Become a fan of the BHL on Facebook


Explore thousands of images from BHL books in our Flickr.
BHL Flickr


Follow and repin images from BHL
BHL Pinterest


Enjoy scientific illustrations from BHL in a feed curated by BHL citizen science volunteer Michelle Marshall of @HistSciArt.
BHL Instagram


Explore our collections on Tumblr. Feed curated by BHL citizen science volunteer Michelle Marshall.


Want to discover online conversations about BHL books? Altmetric on BHL allows you to do just that!

Altmetric is a UK-based company that offers tools to help track online mentions of a library’s or publisher's content. Sites such as Twitter, Facebook, Wikipedia, Reddit, Google+, and Mendeley, as well as other online sources like blogs and news outlets, are indexed.

Altmetric is tracking online conversations that include links to BHL books and articles. All mentions of an individual book (which include a link to the book itself or a link to a page within that book) are aggregated together into a single dashboard that allows you to explore all of the conversations happening about that item in one place. Each book's individual dashboard is accessible by clicking on the Altmetric badge (a colorful, donut-shaped icon) in the book viewer header or the "see more details" link in the information box that pop-ups when you hover over the Altmetric badge (see below) in BHL.

Learn more on our blog.

Screen Shot 2015-07-14 at 3.26.14 PM.png
The Altmetric badge available in BHL.

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The Altmetric Dashboard for an item in BHL.
  • The Altmetric icon will appear in the book viewer header for any book that has been mentioned (and where that mention includes an actual link to that book or a page within that book) on one of the indexed online sites. If there is no Altmetric icon in the book viewer header, then there have not yet been any online conversations (with a link) about that book.
  • Altmetric dynamically tracks new online mentions of BHL books. That means that if you tweet or post about a book in BHL (and include the link to it), Altmetric will subsequently index that post and make it available in BHL via the described Altmetric icon.
  • Altmetric picks up new mentions on Twitter, news outlets, and blogs on a daily basis. Mentions on Wikipedia, Google+, and Facebook are picked up and indexed via the described dashboards every 2-3 days.
  • Mentions of BHL content on social media sites (i.e. Twitter, Facebook, Google+, Reddit, and Mendeley) are captured from June 2014-onwards. Mentions of BHL content on blogs and news articles are captured since the launch of BHL onwards.
  • Indexed conversations are those that include links that start with "" or "" or "" We are not tracking mentions with links that start with "" due to Google Scholar tag guidelines, which form the basis of Altmetric's tracking ability.
  • Traditionally, Altmetric tracks only DOI (Digital Object Identifiers) mentions, but for this project our team worked with Altmetric to pioneer the tracking of URIs (Unique Resource Identifiers) via Altmetric. In exchange, Altmetric has granted us free access to their license and services.


BHL's implementation of Altmetric was made possible in part by a grant from the Institute for Museum and Library Services as part of our Mining Biodiversity Project [Grant number LG-00-14-0032-14].

We extend a special thanks to Altmetric for providing us with free access to their license and services.

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