Donald's Seal Adventure
Learn. Collect. Create.

Read about seals. Collect their DNA.

Hi, I'm Donald. Seals are the coolest animals in the ocean and I built this place to prove it. Every part of my archive you actually read gives you seal DNA. Save up enough and you can build a seal of your own choosing, and it will live in your aquarium forever.

34 species2 hidden unlocksNo sign-up
Start my adventure See my aquarium
Donald's Seal Adventure poster: Donald holding a plush seal underwater with seals swimming behind him
How it works

Three steps, no sign-up

Your DNA and your seals save automatically in this browser. Nothing to log into.

Step one

📖 Learn

Read a species page. Every section you actually spend time on gets sequenced and pays out DNA. Skimming past does not count.

Step two

🧬 Collect

Answer the fact check at the end of each page for the biggest DNA bonus. A first guess pays full, a second guess pays a bit less, and only a second miss costs you the reward.

Step three

🐟 Create

Spend your DNA in the Splice Lab and your seal appears in your aquarium, swimming around for good.

The archive

All 34 species to collect

Every pinniped alive today, from the smallest seal on Earth to a four-tonne monster that dives a mile and a half down. Collect every one of them and something hidden opens up.

🔒

There is a secret file in this archive

Somewhere in here is a page about one particular real seal who became famous for flattening traffic cones in an Australian town. It only opens when all 34 species are swimming in your aquarium.

You did it. Every species is in your tank, which means the file is open.

Species collected: 0 of 34

Open the secret file Barnacle's Market

First, the basics

What makes a seal a seal?

Seals are part of a group called pinnipeds, which means "fin-footed." There are three families in the group, and telling them apart is easier than it sounds.

True seals (all eighteen in my archive) have no ear flaps, just a little hole on each side of the head. Their back flippers point backward forever, which makes them amazing swimmers and pretty clumsy on land, where they scoot along on their bellies like a caterpillar.

Sea lions and fur seals have ear flaps you can see, and they can turn their back flippers forward to walk. Walruses get their own family, mostly because of the tusks.

The quick test

Next time you see one, ask two questions:

Can you see its ears?
Little flaps sticking out means sea lion. Just a hole means true seal.

How does it move on land?
Walking on all fours means sea lion. Wriggling on its belly means true seal.

All 34 species came from one animal. Every pinniped alive today came from a bear-like hunter that started catching food in the water about 24 million years ago. Seals never went all the way back to land like otters did, and never lost their legs completely like whales did. They are stuck right in the middle, which is exactly what makes them so good at what they do.

Ready to start collecting?

Pick any species. Your DNA follows you across the whole archive.

Open the first file