Prickly pear cactus, Oputina stricta, is invasive in Ethiopia, where it outcompetes native plants and prevents grazing on or near it (Photo Credit: CABI).

While most geckos are noctural, some like this Namib day gecko can be found out on rocks during the day. (Photo Credit: L. Ceríaco)

While important discoveries remain to be made in the field, early 20th century museum collections remain an important untapped resource for studying the distribution and diversity of Angolan and Namibian amphibians and reptiles. (Photo Credit: L. Ceríaco)