God Gave Whales Their Own “Fingerprints”

A whale’s tail is called a fluke. God designed the fluke with a unique pattern of spots and colors, which scientists use to identify whales. He created many living things with one-of-a-kind features, and God carefully designed each one to be special and different.

Every Whale Has Its Own Secret Code

On the underside of a whale’s tail, there are several characteristics that can be used to name, identify, and track the animal. These include the shape of the tail, injuries and scars, speckles and spots, or even barnacles (barnacles are crustaceans that attach themselves to whales).1 The position and arrangement of these markings is unique to each whale, with no two whales displaying identical fluke features.2

Whale Detectives on the Case

Scientists photograph the underside of whale tails to capture the “fingerprint” patterns. Whale researchers have built photo ID databases with thousands of individual whale tails.3 By matching fluke research photos, scientists can learn how long whales live and how they raise their babies, called calves.4^,5 This also helps researchers track whale migration routes. One whale named “Old Timer” has been tracked since 1972—that’s over 50 years!6

Are You Ready to Be a Whale Scientist?

A company called Happy Whale provides up-to-date information about whales. Since 2015, they have partnered with the public to collect photographs of whales and marine creatures from all around the world. Happy Whale now has the largest database of marine animal records.7 You can be a scientist by uploading your pictures of whale flukes. Happy Whale will match your photo to others in their database, like how human fingerprints are searched in police departments’ automated systems.8 What a wonderful way for you to be a part of caring for God’s creation and celebrating it!

Every Whale Is a Masterpiece

God is such an amazing Creator. He didn’t just create humpback whales, but God created each individual whale to be unique. Psalm 104:24–25 tells us,

How numerous are Your works, O Yahweh! In wisdom You have made them all; the earth is full of Your possessions. This is the sea, great and broad, there the creeping things are without number, creatures both small and great.

God made an incredible variety of creatures, and the ocean is overflowing with them.

From Whale Tails to You, God Knows Every Detail

God made you unique too. Not just in your fingerprints, but in your personality, your laugh, your DNA, and so much more. Just as your fingerprints reflect that you are fearfully and wonderfully made, a whale’s fluke markings show that God’s creativity goes all the way down to the individual details.

The same Creator who named the stars (Psalm 147:4) gave every whale its own signature.

Do you have a question about forensics or how forensic scientists pursue God’s desire for justice? Ask your parents to help you submit your question today!

Footnotes

1. Avery Schuyler Nunn, “Decoding the Fingerprint of a Humpback Whale,” Popular Science, July 22, 2025, https://www.popsci.com/environment/humpback-whale-flukes/.
2. Chris Biertuempfel, “Photographing Whales for Science,” Oceanic Society, September 12, 2016, https://www.oceanicsociety.org/news-and-announcements/photographing-whales-for-science/.
3. “Taking Whale Science to New Heights,” New England Aquarium, accessed July 28, 2026, https://www.neaq.org/taking-whale-science-to-new-heights/.
4. Juan Restrepo and Juan Barreto, “Whale of a tail: Scientists track unique humpback ‘fingerprint,’” Phys.org, March 15, 2024, https://phys.org/news/2024-03-whale-tail-scientists-track-unique.html.
5. New England Aquarium, “Taking Whale Science.”
6. Elizabeth Pennisi, “‘Extraordinary’ globetrotting humpback whale tracked down with tail-recognition software,” Science, December 10, 2024, https://www.science.org/content/article/extraordinary-globetrotting-humpback-whale-tracked-down-tail-recognition-software.
7. “About,” Happy Whale, accessed July 28, 2026, https://happywhale.com/about.
8. Biertuempfel, “Photographing Whales.”