Thousands of octopuses congregate in 'Octopus Garden' at underwater volcano to hasten egg hatching

Researchers discovered thousands of octopuses gathered at the Davidson Seamount off the California coast.
The octopuses are nesting near hydrothermal vents that provide warmth to hasten embryo development.
The warm water cuts brooding time in half, increasing odds of hatchling survival.
Scientists estimate over 20,000 octopuses occupy the deep-sea nursery site.
Further research is needed to understand octopus reproductive behaviors in extreme environments.