Biofluorescence is a phenomenon in which creatures—plant or animal—absorb light at a certain wavelength and release or emit it at a different wavelength. The light from the animal becomes a different color from the light that was absorbed.

In 2020, ICR’s Dr. Jeff Tomkins discussed biofluorescence in the platypus, of all animals.

The beautiful sea stars (“starfish”), classified as echinoderms, are one of the most easily identifiable marine invertebrates, with their characteristic radiating arms and stony skin of calcium carbonate. The sea star’s water vascular system is one of the more amazing and complex arrangements in the animal world.