In the passage , it is said that only endotherm animals can maintain their temperature in such cold climates .
In the passage , it is said that only endotherm animals can maintain their temperature in such cold climates . In the passage , it is said that only endotherm animals can maintain their temperature in such cold climates . In the passage , it is said that only endotherm animals can maintain their temperature in such cold climates . In the passage , it is said that only endothermic animals can maintain their temperature in such cold climates .