<Table> <Tr> <Th> Thermoregulation in animals </Th> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> <Ul> <Li> Ectotherm </Li> <Li> Endotherm </Li> <Li> Mesotherm </Li> <Li> Poikilotherm </Li> <Li> Homeothermy </Li> <Li> Heterothermy </Li> <Li> Stenotherm </Li> <Li> Eurytherm </Li> <Li> Thermolabile </Li> <Li> Thermostability </Li> <Li> Gigantothermy </Li> <Li> Kleptothermy </Li> <Li> Bradymetabolism </Li> <Li> Tachymetabolism </Li> <Li> Thermogenesis </Li> </Ul> </Td> </Tr> <Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> </Table> <Tr> <Th> Thermoregulation in animals </Th> </Tr> <Tr> <Td> <Ul> <Li> Ectotherm </Li> <Li> Endotherm </Li> <Li> Mesotherm </Li> <Li> Poikilotherm </Li> <Li> Homeothermy </Li> <Li> Heterothermy </Li> <Li> Stenotherm </Li> <Li> Eurytherm </Li> <Li> Thermolabile </Li> <Li> Thermostability </Li> <Li> Gigantothermy </Li> <Li> Kleptothermy </Li> <Li> Bradymetabolism </Li> <Li> Tachymetabolism </Li> <Li> Thermogenesis </Li> </Ul> </Td> </Tr>

Why would it be advantageous for an endotherm to increase its metabolic rate