The x-axis shows 'Environmental Temperature (in degree Celsius)' ranging from 0 to 50 with an increment of 10 and y-axis is for 'Body Temperature (degree Celsius)' ranging from 0 to 50 with an increment of 10. Internal temperature at different environment temperature of various animals are shown: Pigeon line is in top followed by Cat, Rabbit, Alligator, Snake and Lizard