All posts by michelle.underhill

This post was originally published on the rOpenSci blog on 28 August 2018 and is republished with permission of the author, Dr. Maëlle Salmon, and rOpenSci.

Armed with rOpenSci’s packages binding powerful C++ libraries and open taxonomy data, how much information can we automatically extract from images? Maybe not much, but, experimenting with gorgeous drawings from a natural history collection, we can least explore image manipulation, optical character recognition (OCR), language detection, and taxonomic name resolution with rOpenSci’s packages.

On 25 August – 1 September 2018, BHL representatives from around the world traveled to Dunedin, New Zealand to attend the joint Society for the Preservation of Natural History Collections (SPNHC) and Biodiversity Information Standards (TDWG) conference. Hosted by the Otago Museum and the University of Otago, the conference represented several firsts, including the first joint meeting of these two organizations plus the first SPNHC meeting in the Southern Hemisphere.

With the theme “Collections and Data in an Uncertain World”, the conference was an opportunity for bioinformatics and natural science collections professionals to exchange ideas and expertise as they explored the myriad intersections between collections and the data generated from them. BHL, an institutional member of TDWG, was proud to be a conference partner for this important event.

We’re excited to announce the launch of the new About BHL site!

What is BHL’s history? Who’s involved in the Library? What tools and services does BHL offer? How do you search, download content or access data and developer tools in BHL? How can you get involved in the Library? What projects has BHL engaged in?

Find the answers to these questions and much more information about the Biodiversity Heritage Library on our new About site at about.biodiversitylibrary.org!

The new site, which lives alongside and is linked from our digital library portal at

The passenger pigeon’s demise is one of the most infamous examples of human-caused extinction. Once the most abundant bird species in North America, it was hunted relentlessly, with large-scale commercial hunting facilitated by railroad distribution placing excessive pressure on the species. The population declined from billions to none in less than one hundred years.

The last passenger pigeon, Martha, died at the Cincinnati Zoological Garden at about 1pm on September 1, 1914.

While stories of passenger pigeon flocks blackening the skies underscore the species’ once staggering abundance, its distribution was concentrated in the eastern United States. But could there have been resident populations in the western U.S.?

Passenger pigeon bones uncovered from the La Brea Tar Pits in Los Angeles, California inspired Dr. Libby Ellwood to ask this very question and embark on a research project empowered by the Biodiversity Heritage Library’s collections.

Íris Sampaio, a Ph.D. candidate in the Department of Oceanography and Fisheries at the University of the Azores & Senckenberg am Meer, Germany, has been studying octocoral taxonomy and ecology for eleven years. Résultats des campagnes has had a significant impact on Sampaio’s research, providing her with data on octocoral species collected in the Azores. Thanks to the Biodiversity Heritage Library, she now has easy access to the title’s public domain volumes.

Historia naturalis ranarum nostratium has been described as one of the most beautiful works devoted to frogs and amphibians.

The work of German artist and naturalist Johann Rösel von Rosenhof, Historia naturalis ranarum nostratium describes the natural history of all then-known frogs and toads indigenous to the Nuremberg region in Germany. The title is noteworthy first for the extensive, accurate information in the text, printed in two columns in both German and Latin.

The work is equally (if not more) renowned for its illustrations. The twenty-four folio, hand-colored copper engravings portray habitats, anatomy, reproductive behavior, and larval development stages in intricate detail.

“The Librarian’s Nightmare.”

Such is the name given to a delightful and quirky vignette found within a very rare, and very special, orchid book: James Bateman’s The Orchidaceae of Mexico and Guatemala ([1837]-1843).

This vignette, the work of caricaturist George Cruikshank, depicts a group of men struggling to lift an enormous book using a pulley system while a harried taskmaster with a megaphone attempts to direct their work and demons dance about with impish glee on the sidelines.

The vignette’s caption, translated from the Greek, reads “a big book is a big evil”.

The scene is a humorous commentary on the massive size of Bateman’s orchid book. At about 30” x 22” and weighing in at over 38 lbs, it is the “largest botanical book ever produced with lithographic plates”.