Why sloths defecate on the ground: rejection of the mutualistic model

Why sloths defecate on the ground: rejection of the mutualistic model

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Introduction: Sloths are arboreal mammals that defecate on the ground, increasing the risk of predation.There are several hypotheses that try to explain why they undergo this risk.Objective: To critically review all the hypotheses and to propose a new hypothesis that is compatible with all known data.Methods: I verified the assumptions and implications of five hypotheses against Canvas Mesh Athletic Running Shoes the literature available February, 2021.Results: Previous hypotheses either lack reliable supporting data, or click here are contradicted by published data.

Here I propose that defecation on the ground is an ancestral behavior that persists in all sloth species because there has not been enough natural selection against it.Conclusions: Current knowledge of sloth biology is compatible with the hypothesis that there has not been enough selective pressure for sloths to abandon defecation on the ground.