The GFP is created in a lab by genetically modifying the Axolotl genome with a green fluorescent protein. The modification was originally created for medical research purposes but now they are available as pets. It can look like a Wild-Type or any other morph until it is exposed to UV light and then its green color is unmistakable. The lighter the morph type, the stronger the green coloring will show under UV light. Interestingly, even though they were originally created in a lab, the GFP morph is passed down from parent to offspring. However, because they are genetically modified organisms, they are illegal in certain parts of the world depending on a country’s laws.