Take a Trip Back in Time This Holiday Season!

Fellow nerds – I love the this blog. This post features 10 living species of primitive fish. I find this fascinating. I hope you enjoy.

National Aquarium - WATERblog

We’re celebrating the arrival of our all-new Ice Age: A Mammoth Christmas 4D Experience, by introducing you to some of our favorite “prehistoric” residents here at the Aquarium!

Chambered Nautilus

The chambered nautilus is a mollusk, related to the octopus, squid, clam and snail! Did you know? Nautili are the only cephalopod species that has a fully-developed protective shell.

chambered nautilus

The nautilus is considered to be a “living fossil,” as the species has undergone little change in the last 400 million years. The nautilus first appeared about 265 million years before the first dinosaurs.

Did you know? There were about 10,000 different species of nautilus in prehistoric times. Currently, there are six living species of nautilus – all found in the Indo-Pacific.

Horseshoe Crab

Scientists can trace this species back to the Paleozoic Era (before dinosaurs and even flowering plants were around!) – which began 540 million years ago. Incredibly…

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