- Importance of the antenniform legs, but not vision, for homing by the neotropical whip spider Paraphrynus laevifrons
Summary: Tropical amblypygids inhabit structurally complex habitats, yet navigate home in the dark after a night hunting prey; olfaction appears to be important for navigation.
- New electroantennography method on a marine shrimp in water
Summary: Electroantennography allows the recording of the global chemoreceptor response from the antennal appendages, and is developed here for studies on marine shrimp in aqueous conditions.
- Learning about natural variation of odor mixtures enhances categorization in early olfactory processing
Summary: Natural odors vary in composition among objects, which could confound categorization with regard to common meanings. Plasticity in early olfactory processing enables efficient use of the coding space to solve this categorization problem.
- Pigeon navigation: exposure to environmental odours prior to release is sufficient for homeward orientation, but not for homing
Summary: Environmental local odours perceived at the release site are sufficient for pigeons’ homeward orientation, but pigeons can successfully home only if they can rely on olfactory cues during flight beyond the release site.
- Olfactory specialization for perfume collection in male orchid bees
Highlighted Article: Electroantennography responses of male orchid bees are species-specific and particularly strong for some of their major perfume ingredients.
- King penguins can detect two odours associated with conspecifics
Summary: King penguins are known to use acoustic cues to recognize individuals but these birds are also sensitive to the scent of their feathers and feces.
- Mixed input to olfactory glomeruli from two subsets of ciliated sensory neurons does not impede relay neuron specificity in the crucian carp
Summary: Despite receiving mixed olfactory sensory neuron innervation, mitral cell axons in the crucian carp are selectively labelled, suggesting that they project the mixed inputs separately to the telencephalon.
- One antenna, two antennae, big antennae, small: total antennae length, not bilateral symmetry, predicts odor-tracking performance in the American cockroach Periplaneta americana
Summary: Plume tracking in Periplaneta americana does not require bilateral olfactory input. The total size of the olfactory sensory structure(s), not its bilateral symmetry, predicts the cockroach's tracking performance.