Scientists find underwater city of 20,000 octopus nests off California coast

Deep off the California coast, researchers have identified an underwater nursery containing about 20,000 octopus nests, a site known as the Octopus Garden.

The nursery is home to thousands of pearl octopuses, which gather in warm waters influenced by nearby hydrothermal vents. The site serves as a place for the animals to mate and nest.

Female octopuses care for their eggs until they hatch. They die in the final moments of that process, and their bodies then replenish the food chain for other deep-sea creatures.