Animal-human two-shot images: Their out-of-context interpretation and the implications for zoo and conservation settings.

Images containing both animals and humans (two-shot images) are popular across social media and zoo advertising. However, these images, even when taken in ethical and conservation settings, have the potential for misinterpretation and may inadvertently promote the illegal wildlife trade, exotic pet trade or photo-prop industries. We examined whether zoo visitors' (n = 531) attitudes and stated Willingness to Donate (WTD) altered depending on whether they viewed a two-shot image set in a photo-prop setting (typically associated with negative welfare) or in a zoo or wild setting.

The embryonic development of the central American wandering spider Cupiennius salei.

Background: The spider Cupiennius salei (Keyserling 1877) has become an important study organism in evolutionary and developmental biology. However, the available staging system for its embryonic development is difficult to apply to modern studies, with strong bias towards the earliest developmental stages. Furthermore, important embryonic events are poorly understood.