Loss of an apex predator in the wild induces physiological and behavioural changes in prey. Biology Letters, 18(1), Article 20210476
DOI: 10.1098/rsbl.2021.0476

Physiological stress responses to natural variation in predation risk: evidence from white sharks and seals. Ecology, 98(12), 3199–3210
DOI: 10.1002/ecy.2049