Based on the results of a previous study, we question the role of "spikes" on Acanthodactylus schreiberi's toes.

We aim to study three populations of the species A. schreiberi, from different habitat types, to find if there are any spike-related adaptations (morphological or physiological), that affect sprint performance.

To achieve that comparison, we will use a custom racetrack and different substrate types (sand, dirt, dirt/rock), mimicking substrates found on the three habitats.