age-related behaviour, green sea urchin, behavioural plasticity, Strongylocentrotus droebachiensis, covering behaviour, foraging, protection, camouflage, decoration, physiological costs/benefits, Aquatic life, Animal behavior, Zoology, Marine biology, Predation, Anatomy & physiology, Invertebrates
Oceans, Thermodynamics, Stochastic models
Usage, Climate models, Observations, Ocean circulation, Ocean-atmosphere interaction, Ocean temperature