Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=ttrs20 Download by: [University of Cape Town Libraries], [lance van sittert] Date: 08 April 2016, At: 06:21 Transactions of the Royal Society of South Africa ISSN: 0035-919X (Print) 2154-0098 (Online) Journal homepage: http://www.tandfonline.com/loi/ttrs20 Historical perspectives on global exports and research of African clawed frogs (Xenopus laevis) Lance van Sittert & G. John Measey To cite this article: Lance van Sittert & G. John Measey (2016): Historical perspectives on global exports and research of African clawed frogs (Xenopus laevis), Transactions of the Royal Society of South Africa To link to this article: http://dx.doi.org/10.1080/0035919X.2016.1158747 Published online: 08 Apr 2016. Submit your article to this journal View related articles View Crossmark data