Velvety tree ant extract is a chemotaxis repellent for .

Ants use a range of compounds for interspecies interactions, but the neurogenetic mechanisms mediating these interactions are unclear. Here, we used chemotaxis assays with the nematode to test if ant compounds can be detected by the worm nervous system and which chemosensory neurons are required for detection. We found that avoid the extracts of velvety tree ants ( ), and this response requires and positive neurons.

Olfactory cues elicit species-specific locomotive responses in poison frog tadpoles.

Amphibian species rear their larvae in distinct environments that may influence how they respond to different sensory stimuli. Here, we investigated the olfactory-mediated locomotive responses of two poison frog species ( and ) that vary in life history strategies. We found that tadpoles spent more time near an injury cue compared to control, while tadpoles increased their movement in response to high concentrations of amino acids.