Crab is a canary network with real economic value for Darwinia, positioning similar to Polkadot's Kusama Network. Darwinia Network(Darwinia) and Crab Network(Crab) are independent, standalone networks built on similar codebases but with different priorities.

Crab is great for bold experimentation and early-stage deployment. All new things come to Crab first to be tried in a live, fully decentralized, and community-controlled network with real-world conditions and lower stakes. But Crab is not a testnet and has an economic value. Darwinia is more conservative, prioritizing stability and dependability.