Vallejo et al. 2022

Vallejo, A. C., Barragán-Barrera, D. C., Curtidor, N. F., Bachmann, J., Murillo, E. G., Lloreda, L. A., & Murillo, Y. G. (2022). Play behavior by a juvenile humpback whale (Megaptera novaeangliae) with an inanimate object (driftwood) in the Gulf of Tribugá, Colombia. Aquatic Mammals, 48(6), 678-683.