Well designed app that explains how to hunt for eggcases, how to identify them (ID guide for species found in the UK species), and how to prepare them to take ID photos to upload with the app. The aim of the project is to identify where different species of oviparous (egg laying) shark, ray, and skate species lay their eggs. For more information see www.eggcase.org.
Originally designed for the UK, the eggcase identification is limited. It does allow you to upload data from other parts of the world. An international version covering more species would be appreciated.