The tiny crustacean that lives where nothing else can.
Brine shrimp survive salt concentrations that would kill almost any other animal, hatch from eggs that can wait a decade for water, and have been swimming upside-down through hypersaline lakes since before the dinosaurs went extinct. This is a field guide to their whole story — from a 10th-century Persian manuscript to a paper-envelope full of "instant pets."
Eight ways into the same small animal
Every page below covers one part of the brine shrimp's life, from the manuscript that first described it to the packet of eggs you can hatch on a kitchen counter.
History
A Persian geographer described an "aquatic dog" in Lake Urmia in the 10th century — centuries before Western science caught up.
Read the record → 02 · WhereHabitat
Hypersaline lakes, salt pans, and salterns on every continent but Antarctica — water too salty for predators to follow.
See where they live → 03 · GrowthLife Cycle
From dormant cyst to swimming nauplius to adult in as little as eight days, through 15 molts along the way.
Follow the stages → 04 · FeedingDiet
Filter feeders that sieve algae, bacteria, and drifting detritus straight out of the water column, non-stop.
See what they eat → 05 · TimeLifespan
An adult may live only a few months — but a dry cyst can outlast the person who collected it.
Get the numbers → 06 · PurposeUses
Fish-hatchery feed, toxicology test subject, microgravity research passenger, and household novelty pet.
See how they're used → 07 · PracticeRaising Them
A step-by-step method for hatching and growing your own culture, whether it's for fish food or curiosity.
Start a culture → 08 · Pop cultureSea-Monkeys
How a mail-order brine shrimp kit became a comic-book icon and a strange little slice of Americana.
Meet the Sea-Monkeys →