Data from: Aggression supersedes individual oxygen demand to drive group air-breathing in a social catfish

Shaun S. Killen, Andrew J. Esbaugh, Nicolas Martins, F. Tadeau Rantin, David J. McKenzie, Nicolas F. Martins & F. Tadeu Rantin
1) Group-living is widespread among animals and comes with numerous costs and benefits. To date, research examining group-living has focused on trade-offs surrounding foraging, while other forms of resource acquisition have been largely overlooked. 2) Air breathing has evolved in many fish lineages, allowing animals to obtain oxygen in hypoxic aquatic environments. Breathing air increases the threat of predation, so some species perform group air breathing, to reduce individual risk. Within species, air breathing can...
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