Сетевые ресурсы

Heying, Heather (2003) ‘Arthroleptidae’ Animal Diversity Web, accessed 17 April 2012

<animaldiversity.ummz.umich.edu/site/accounts/information/Arthroleptidae.html>.

Walker, M (2009) ‘Pebble toad’s rock and roll life’ BBC Earth News, accessed 17 April 2012

<news.bbc.co.uk/earth/hi/earth_news/newsid_8307000/8307333.stm>.

Walker, M (2011) ‘Rapid venom evolution in pit vipers may be defensive’American Museum of Natural History, accessed 17 April 2012

<eurekalert.org/pub_releases/2011–07/amon-rve071811.php>.