If you’re in the market for a low-cost, low-maintenance, low-commitment but high-interest pet, you can’t do better than triops. What are triops? Also known as tadpole shrimp, triops are a kind of ...

These ancient crustaceans are meager in size but mighty in history. A colony of prehistoric triops, a tadpole shrimp that’s existed for hundreds of millions of years, was beautifully captured by ...