absorb - to take in
cold-blooded - having a body temperature that is not internally regulated and that takes on the temperature of the environment.
ectotherm - a cold-blooded animal that cannot regulate its body temperature.
electromagnetic radiation - another term for light which includes x-rays, gamma rays, ultraviolet, visible, infrared, microwave and radio waves.
emit - to put out
endotherm - an animal capable of maintaining its body temperature above the temperature of the external environment.
false-color - assigning color to an image to reveal features or convey information.
habitat - the environment where an animal normally lives.
heat - the energy an object has because of the movement of its atoms and molecules
infrared - electromagnetic radiation that we can feel as heat. Infrared has wavelengths longer than the red end of visible light and shorter than microwaves.
radiate - to send out light or electromagnetic radiation
temperature - a measure of how hot or cold something is - how much heat energy it has. Temperature is essentially a measure of how fast the particles in a body are moving (or vibrating).
thermoregulate - to control body temperature
warm-blooded - animals capable of regulating their body temperature
wavelength - a characteristic of light, it is the distance between two wave crests.