A Polydora species was found boring in shells of the abalone Haliotis discus hannai cultivated in landbased tanks in Coquimbo, Chile.

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Triboelectric nanogenerators (TENGs) are clean self-powering devices that efficiently convert mechanical energy to electrical energy (Wang, Yang, & Wang, 2017). Since mechanical energy is already present in human activity, these nanogenerators bioharvest such a 'wasted' energy and convert it into useful energy. In this way, TENGs become self-powering motion sensors (Abdullah, Chowdhury, et al., 2020; Yang et al., 2018; Zhang et al., 2019). TENGs are cost-effective, flexible, lightweight, highly sensitive to motion and non-toxic (Wang et al., 2017). These features have attracted the attention of the research development industry, and of professionals interested in collecting real-time body movement. Moreover, the compact size of the TENG permits it to be integrated into assorted wearable items.

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