Most arachnids are central-place foragers that return to retreats or burrows after excursions
to hunt. In general, arachnids are relatively large and accessible to behavioral and …

Fiddler crabs are abundant, semi-terrestrial crustaceans inhabiting tropical, subtropical and
warm temperate coasts worldwide. Some species build above-ground sedimentary …

Natural scene analysis has been extensively used to understand how the invariant structure
of the visual environment may have shaped biological image processing strategies. This …

Upon locating a suitable dung pile, ball-rolling dung beetles shape a piece of dung into a
ball and roll it away in a straight line. This guarantees that they will not return to the dung …

The anthropogenic construction activities on the coasts, such as pile-driving, generate
vibrations that propagate through the substrate. Such substrate-borne vibrations could …

As animals execute essential behaviors like foraging, they must orient with respect to the
space around them, requiring some neural/behavioral mechanism for spatial navigation …

Highlights•Courting male fiddler crabs build sand hoods that attract females for
mating.•Males use their hood to find their burrow when their nonvisual path map fails.•Hoods …

We investigated the navigational capabilities of the world's largest land-living arthropod, the
giant robber crab Birgus latro (Anomura, Coenobitidae); this crab reaches 4 kg in weight and …

Foraging fiddler crabs form a strict spatial relationship between their current positions and
burrows, allowing them to run directly back to their burrows when startled even without …

The world's nearly 7,000 species of crabs are immediately recognizable by their claws,
sideways movement, stalked eyes, and thick outer shells. These common crustaceans are …