What is ocean’s ‘lake of death’? What happens when marine life enters one of deadliest underwater spots

Brine pools, extremely salty, oxygen-free underwater lakes, are lethal to most marine life but teem with resilient microbes. Found mainly in the Red Sea, Mediterranean, and Gulf of Mexico, they create sharp boundaries, trap prey, and preserve sediments like natural time capsules. Studying them offers insights into early Earth conditions, extreme ecosystems, and potential medical applications from unique microbial life.