Volodin IA, Sibiryakova OV, Frey R, et al. Individuality of distress and discomfort calls in neonates with bass voices: Wild-living goitred gazelles ( Gazella subgutturosa) and saiga antelopes ( Saiga tatarica). Ethology. 2017;123(5):386 - 396. Available at: http://doi.wiley.com/10.1111/eth.2017.123.issue-5.