1 / 4   Looks like an X-ray image of a fish? Actually, this is a special fish specimen on show at the Transparent Fish Exhibition at the Aquaria KLCC in Kuala Lumpur, Malaysia. /VCG Photo

2 / 4   At the exhibition, visitors can have a look at a variety of rare fish specimens, like Mirror Dory, Lemon ghost flathead and Eubleekeria, which are usually found in the deep waters. /VCG Photo.

3 / 4   How to make these exquisite transparent fish specimens? Scientists employ special enzymes to digest these creatures' muscles and tissues, and color their bones and cartilages with chemical dyes. /VCG Photo

4 / 4   With the help of these specimens, visitors can learn more about the skeletal framework and growth process of these aquatic animals. /VCG Photo