South America is a vast continent endowed with extraordinary biodiversity that offers
abundant opportunities for neuroethological research. Although neuroethology is still …

Highlights•Image forming compound eyes were present in Cambrian predatory arthropods
(~ 520 mya).•Several arthropod predators have evolved high-resolution single-chamber …

Neurological disorders have been increased in the last years, affecting over one billion
people globally. The lack of successful treatments is related to the low brain bioavailability of …

Decision-making processes in the context of prey–predator interactions are studied from the
side of the prey or the predator. Thus, prey capture and escape behaviours are researched …

Similar to most visual animals, the crab Neohelice granulata relies predominantly on visual
information to escape from predators, to track prey and for selecting mates. It, therefore …

Studies on pH stress in marine animals typically focus on direct or species-specific aspects.
We here test the hypothesis that a drop to pH= 7.6 indirectly affects the intra-and interspecific …

Spatial learning is a complex cognitive skill and ecologically important trait scarcely studied
in crustaceans. We investigated the ability of the Pacific (Ecuadorian) hermit crab Coenobita …

All animals need information about the direction of motion to be able to track the trajectory of
a target (prey, predator, cospecific) or to control the course of navigation. This information is …

Background The quantitative study of behavioral responses to visual stimuli provides crucial
information about the computations executed by neural circuits. Insects have long served as …

In animals, memory allows to remember important locations and conserve energy by not
responding to irrelevant stimuli. However, memory formation and maintenance are …