A swarm of blue-and-purple hydras has been infesting a beach in south-central California, USA, surprising visitors.
The Point Reyes National Beach Service near San Francisco posted a photo on Facebook on the 5th (local time) of a small marine life spread widely as if sprayed with blue paint on the beach in the area.
The beach management described the creature as “a flat oval hydra (cousin of jellyfish) named ‘Velella velella’.”
The beach management explained that these creatures originally live in the sea, but are often washed ashore when strong winds blow, and are also nicknamed ‘By-the-Wind Sailors’.
Local broadcaster KTLA also warned on the 10th (local time) that these hydra worms have been frequently seen on the beach recently, saying, “Do not touch them.”
According to marine biologists, hydras have tentacles like jellyfish, so you can sting them if you touch them. However, it is known that the risk is low because it is rarely shot.
Experts analyze that as several record-breaking storms hit California from last winter, strong winds pushed sea creatures ashore.
